1. Trigonometry Review

2. Angle Measurement radians, so radians
To convert from degrees to radians, multiply by
To convert from radians to degrees, multiply by

3. Special Angles
r=1

4. Special Angles - Unit Circle Coordinates
π/3
5π/6
π/4
π/2
2π/3
3π/4
π/6 π
3π/2

5. Trig Functions - Definitions
(x,y) r 

6. Trig Functions - Definitions
opp
adj
hyp

7. Trig Functions - Definitions

8. Trig Functions Signs by quadrants sin, csc positive
all functions positive
tan, cot positive
cos, sec positive

9. Trig Identities
Reciprocal
Quotient

10. Trig Identities
Pythagorean

11. Trig Identities
Double Angle

12. Inverse Trig Functions
is equivalent to
is equivalent to

13. Solving Trig Equations
Use algebra, then inverse trig functions or knowledge of special angles to solve.
example: if