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Candidate
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No.

                                        Paper Reference(s)


                                        6665/01                                                                            Examiner’s use only



                                        Edexcel GCE                                                                       Team Leader’s use only


                                        Core Mathematics C3
                                        Advanced                                                                                 Question Leave
                                                                                                                                 Number Blank
                                        Thursday 14 June 2012 – Morning
                                                                                                                                    1
                                        Time: 1 hour 30 minutes                                                                     2
                                                                                                                                    3
                                                                                                                                    4
                                        Materials required for examination      Items included with question papers
                                        Mathematical Formulae (Pink)            Nil                                                 5

                                        Candidates may use any calculator allowed by the regulations of the Joint                   6
                                        Council for Qualifications. Calculators must not have the facility for symbolic
                                        algebra manipulation or symbolic differentiation/integration, or have                       7
                                        retrievable mathematical formulae stored in them.
                                                                                                                                    8
                                                                                                                                    9
                                                                                                                                   10
Instructions to Candidates
In the boxes above, write your centre number, candidate number, your surname, initials and signature.
Check that you have the correct question paper.
Answer ALL the questions.
You must write your answer for each question in the space following the question.
When a calculator is used, the answer should be given to an appropriate degree of accuracy.

Information for Candidates
A booklet ‘Mathematical Formulae and Statistical Tables’ is provided.
Full marks may be obtained for answers to ALL questions.
The marks for individual questions and the parts of questions are shown in round brackets: e.g. (2).
There are 8 questions in this question paper. The total mark for this paper is 75.
There are 32 pages in this question paper. Any blank pages are indicated.

Advice to Candidates
You must ensure that your answers to parts of questions are clearly labelled.
You should show sufficient working to make your methods clear to the Examiner.
Answers without working may not gain full credit.


                                                                                                                                 Total
This publication may be reproduced only in accordance with

                                                                                                                                Turn over
Pearson Education Ltd copyright policy.




                                                         *P40686RA0132*
©2012 Pearson Education Ltd.
 Printer’s Log. No.

 P40686RA
W850/R6665/57570 5/5/5/3/5
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1.   Express
                                       2(3 x + 2)     2
                                           2
                                                  −
                                        9x − 4      3x + 1
     as a single fraction in its simplest form.
                                                                         (4)
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                                                             (Total 4 marks)

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2.                                   f ( x) = x 3 + 3 x 2 + 4 x − 12

     (a) Show that the equation f ( x) = 0 can be written as


                                          √
                                               4(3 − x)  ,    x ≠ −3
                                     x=        (3 + x) 
                                                                                       (3)

     The equation x3 + 3 x 2 + 4 x − 12 = 0 has a single root which is between 1 and 2

     (b) Use the iteration formula
                                                    4(3 − xn ) 
                                     xn +1 =
                                               √    (3 + x )  , n . 0
                                                          n 

         with x0 = 1 to find, to 2 decimal places, the value of x1 , x2 and x3 .
                                                                                         (3)

     The root of f ( x) = 0 is Į .

     (c) By choosing a suitable interval, prove that α = 1.272 to 3 decimal places.
                                                                                         (3)
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                                                             (Total 9 marks)

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3.
                                              y


                                                                  P
                                                                      C


                                              O                               x




                                            Figure 1

     Figure 1 shows a sketch of the curve C which has equation

                               y = e x 3 sin 3 x ,   −π   x   π
                                                      3       3

     (a) Find the x coordinate of the turning point P on C, for which x  0
         Give your answer as a multiple of ʌ.
                                                                                  (6)

     (b) Find an equation of the normal to C at the point where x = 0
                                                                                  (3)
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                                                             (Total 9 marks)

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4.                                       y



                                         Q (0, 5)



                           P (–1.5, 0)
                                         O                                      x




                                             Figure 2

     Figure 2 shows part of the curve with equation y = f ( x)
     The curve passes through the points P( −1.5, 0) and Q(0, 5) as shown.

     On separate diagrams, sketch the curve with equation

     (a) y = f ( x)
                                                                                             (2)

     (b) y = f ( x )
                                                                                             (2)

     (c) y = 2f (3 x)
                                                                                             (3)

     Indicate clearly on each sketch the coordinates of the points at which the curve crosses or
     meets the axes.




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                                                              Q4

                                         (Total 7 marks)

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5.   (a) Express 4 cosec 2 2θ − cosec 2θ in terms of sin R and cos R.
                                                                         (2)

     (b) Hence show that

                                  4 cosec 2 2θ − cosec 2θ = sec 2 θ

                                                                         (4)

     (c) Hence or otherwise solve, for 0  R  ʌ ,

                                    4 cosec 2 2θ − cosec 2θ = 4

         giving your answers in terms of ʌ.
                                                                         (3)
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                                                             (Total 9 marks)

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6.   The functions f and g are defined by

                                     f : x 6 ex + 2 ,    x ∈

                                     g : x 6 ln x ,      x0

     (a) State the range of f.
                                                                                               (1)

     (b) Find fg( x) , giving your answer in its simplest form.
                                                                                               (2)

     (c) Find the exact value of x for which f (2 x + 3) = 6
                                                                                               (4)

     (d) Find f −1 , the inverse function of f, stating its domain.
                                                                                               (3)

     (e) On the same axes sketch the curves with equation y = f ( x) and y = f −1 ( x) , giving the
         coordinates of all the points where the curves cross the axes.
                                                                                                (4)
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                                                            Q6

                                     (Total 14 marks)

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7.   (a) Differentiate with respect to x,
                 1
         (i)    x 2 ln(3 x)

                 1 − 10 x
         (ii)              , giving your answer in its simplest form.
                (2 x − 1)5                                               (6)
                                         dy
     (b) Given that x = 3 tan 2 y find      in terms of x.
                                         dx                              (5)
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8.                                   f ( x) = 7 cos 2 x − 24 sin 2 x

     Given that f ( x) = R cos(2 x + α ) , where R  0 and 0  α  90 ,

     (a) find the value of R and the value of Į .
                                                                                       (3)

     (b) Hence solve the equation

                                     7 cos 2 x − 24 sin 2 x = 12.5

         for 0 - x 180D , giving your answers to 1 decimal place.
                                                                                       (5)

     (c) Express 14 cos 2 x − 48 sin x cos x in the form a cos 2 x + b sin 2 x + c ,
         where a, b, and c are constants to be found.
                                                                                       (2)

     (d) Hence, using your answers to parts (a) and (c), deduce the maximum value of

                                      14 cos 2 x − 48 sin x cos x
                                                                                       (2)
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                                                            (Total 12 marks)
                                             TOTAL FOR PAPER: 75 MARKS
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C3 2012 june

  • 1. Surname Initial(s) Centre Paper Reference No. 6 6 6 5 0 1 Candidate Signature No. Paper Reference(s) 6665/01 Examiner’s use only Edexcel GCE Team Leader’s use only Core Mathematics C3 Advanced Question Leave Number Blank Thursday 14 June 2012 – Morning 1 Time: 1 hour 30 minutes 2 3 4 Materials required for examination Items included with question papers Mathematical Formulae (Pink) Nil 5 Candidates may use any calculator allowed by the regulations of the Joint 6 Council for Qualifications. Calculators must not have the facility for symbolic algebra manipulation or symbolic differentiation/integration, or have 7 retrievable mathematical formulae stored in them. 8 9 10 Instructions to Candidates In the boxes above, write your centre number, candidate number, your surname, initials and signature. Check that you have the correct question paper. Answer ALL the questions. You must write your answer for each question in the space following the question. When a calculator is used, the answer should be given to an appropriate degree of accuracy. Information for Candidates A booklet ‘Mathematical Formulae and Statistical Tables’ is provided. Full marks may be obtained for answers to ALL questions. The marks for individual questions and the parts of questions are shown in round brackets: e.g. (2). There are 8 questions in this question paper. The total mark for this paper is 75. There are 32 pages in this question paper. Any blank pages are indicated. Advice to Candidates You must ensure that your answers to parts of questions are clearly labelled. You should show sufficient working to make your methods clear to the Examiner. Answers without working may not gain full credit. Total This publication may be reproduced only in accordance with Turn over Pearson Education Ltd copyright policy. *P40686RA0132* ©2012 Pearson Education Ltd. Printer’s Log. No. P40686RA W850/R6665/57570 5/5/5/3/5
  • 2. Leave blank 1. Express 2(3 x + 2) 2 2 − 9x − 4 3x + 1 as a single fraction in its simplest form. (4) ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 2 *P40686RA0232*
  • 3. Leave blank Question 1 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Q1 (Total 4 marks) 3 *P40686RA0332* Turn over
  • 4. Leave blank 2. f ( x) = x 3 + 3 x 2 + 4 x − 12 (a) Show that the equation f ( x) = 0 can be written as √  4(3 − x)  , x ≠ −3 x=  (3 + x)    (3) The equation x3 + 3 x 2 + 4 x − 12 = 0 has a single root which is between 1 and 2 (b) Use the iteration formula  4(3 − xn )  xn +1 = √  (3 + x )  , n . 0  n  with x0 = 1 to find, to 2 decimal places, the value of x1 , x2 and x3 . (3) The root of f ( x) = 0 is Į . (c) By choosing a suitable interval, prove that α = 1.272 to 3 decimal places. (3) ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 4 *P40686RA0432*
  • 5. Leave blank Question 2 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 5 *P40686RA0532* Turn over
  • 6. Leave blank Question 2 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 6 *P40686RA0632*
  • 7. Leave blank Question 2 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Q2 (Total 9 marks) 7 *P40686RA0732* Turn over
  • 8. Leave blank 3. y P C O x Figure 1 Figure 1 shows a sketch of the curve C which has equation y = e x 3 sin 3 x , −π x π 3 3 (a) Find the x coordinate of the turning point P on C, for which x 0 Give your answer as a multiple of ʌ. (6) (b) Find an equation of the normal to C at the point where x = 0 (3) ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 8 *P40686RA0832*
  • 9. Leave blank Question 3 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 9 *P40686RA0932* Turn over
  • 10. Leave blank Question 3 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 10 *P40686RA01032*
  • 11. Leave blank Question 3 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Q3 (Total 9 marks) 11 *P40686RA01132* Turn over
  • 12. Leave blank 4. y Q (0, 5) P (–1.5, 0) O x Figure 2 Figure 2 shows part of the curve with equation y = f ( x) The curve passes through the points P( −1.5, 0) and Q(0, 5) as shown. On separate diagrams, sketch the curve with equation (a) y = f ( x) (2) (b) y = f ( x ) (2) (c) y = 2f (3 x) (3) Indicate clearly on each sketch the coordinates of the points at which the curve crosses or meets the axes. 12 *P40686RA01232*
  • 13. Leave blank Question 4 continued 13 *P40686RA01332* Turn over
  • 14. Leave blank Question 4 continued 14 *P40686RA01432*
  • 15. Leave blank Question 4 continued Q4 (Total 7 marks) 15 *P40686RA01532* Turn over
  • 16. Leave blank 5. (a) Express 4 cosec 2 2θ − cosec 2θ in terms of sin R and cos R. (2) (b) Hence show that 4 cosec 2 2θ − cosec 2θ = sec 2 θ (4) (c) Hence or otherwise solve, for 0 R ʌ , 4 cosec 2 2θ − cosec 2θ = 4 giving your answers in terms of ʌ. (3) ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 16 *P40686RA01632*
  • 17. Leave blank Question 5 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 17 *P40686RA01732* Turn over
  • 18. Leave blank Question 5 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 18 *P40686RA01832*
  • 19. Leave blank Question 5 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Q5 (Total 9 marks) 19 *P40686RA01932* Turn over
  • 20. Leave blank 6. The functions f and g are defined by f : x 6 ex + 2 , x ∈ g : x 6 ln x , x0 (a) State the range of f. (1) (b) Find fg( x) , giving your answer in its simplest form. (2) (c) Find the exact value of x for which f (2 x + 3) = 6 (4) (d) Find f −1 , the inverse function of f, stating its domain. (3) (e) On the same axes sketch the curves with equation y = f ( x) and y = f −1 ( x) , giving the coordinates of all the points where the curves cross the axes. (4) ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 20 *P40686RA02032*
  • 21. Leave blank Question 6 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 21 *P40686RA02132* Turn over
  • 22. Leave blank Question 6 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 22 *P40686RA02232*
  • 23. Leave blank Question 6 continued Q6 (Total 14 marks) 23 *P40686RA02332* Turn over
  • 24. Leave blank 7. (a) Differentiate with respect to x, 1 (i) x 2 ln(3 x) 1 − 10 x (ii) , giving your answer in its simplest form. (2 x − 1)5 (6) dy (b) Given that x = 3 tan 2 y find in terms of x. dx (5) ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 24 *P40686RA02432*
  • 25. Leave blank Question 7 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 25 *P40686RA02532* Turn over
  • 26. Leave blank Question 7 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 26 *P40686RA02632*
  • 27. Leave blank Question 7 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Q7 (Total 11 marks) 27 *P40686RA02732* Turn over
  • 28. Leave blank 8. f ( x) = 7 cos 2 x − 24 sin 2 x Given that f ( x) = R cos(2 x + α ) , where R 0 and 0 α 90 , (a) find the value of R and the value of Į . (3) (b) Hence solve the equation 7 cos 2 x − 24 sin 2 x = 12.5 for 0 - x 180D , giving your answers to 1 decimal place. (5) (c) Express 14 cos 2 x − 48 sin x cos x in the form a cos 2 x + b sin 2 x + c , where a, b, and c are constants to be found. (2) (d) Hence, using your answers to parts (a) and (c), deduce the maximum value of 14 cos 2 x − 48 sin x cos x (2) ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 28 *P40686RA02832*
  • 29. Leave blank Question 8 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 29 *P40686RA02932* Turn over
  • 30. Leave blank Question 8 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 30 *P40686RA03032*
  • 31. Leave blank Question 8 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 31 *P40686RA03132* Turn over
  • 32. Leave blank Question 8 continued ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Q8 (Total 12 marks) TOTAL FOR PAPER: 75 MARKS END 32 *P40686RA03232*