1. 5-3 The Unit Circle

2. Trig Functions in relation to sin and cos
Tan θ
Sec θ
Cot θ
Csc θ

3. Ex 17: Use the unit circle to find each value. Sin 150˚ Cos 225˚
Sec 60˚
Csc 300˚
Tan 180˚
Cot 240˚

4. Ex 3:
Use the unit circle to find the values of the six trig functions for 210˚
Sin 210˚
Cos 210˚
Tan 210˚
Csc 210˚
Sec 210˚
Cot 210˚

5. Angles in standard position
Ex 17-16:
Find the values of the six trigonometric functions for angle θ in standard position if a point with coordinates (-15, 20) lies on its terminal side.

6. Ex Last One:
Suppose θ is an angle in standard position whose terminal side lies in Quadrant IV. If sec θ = find the values of the remaining five trig functions.