Unit Circle Day 1

1. Homework QuestionsHomework Questions

2. Unit Circle NotesUnit Circle Notes

3. VERY IMPORTANTVERY IMPORTANT
***The Quicker you learn this stuff the better off you will be******The Quicker you learn this stuff the better off you will be***
 sinsin ӨӨ = y= y
 coscos ӨӨ = x= x
 (x, y) = (c, s)(x, y) = (c, s)

x
y
=
Θ
Θ
=Θ
cos
sin
tan

4. ExamplesExamples
1.1. sin 45sin 45ºº
2.2. sin 270ºsin 270º
3.3. cos 270ºcos 270º
4.4. tan 45ºtan 45º
5.5. sinsin
6.6. tantan
7.7. coscos
8.8. sec 30sec 30ºº
9.9. csc 330ºcsc 330º
10.10. cot 0cot 0ºº2
π
4
3π
3
π

5. Lots of Practice!Lots of Practice!
 Trig Values WorksheetTrig Values Worksheet

6. Lots of Practice!Lots of Practice!
 Trig Values WorksheetTrig Values Worksheet