1. Trigonometric Function: The Unit circle Trigonometric Function: The Unit circle SHS Spring 2014

2. The Unit Circle A circle with radius of 1 Equation x 2 + y 2 = 1

3. Some common radian measurements These are the Degree expressed in Radians

4. The Unit Circle with Radian Measures

5. Do you remember 45º, 45º, 90º triangles? When the hypotenuse is 1 The legs are

6. Do you remember 30º, 60º, 90º triangles? Now they are really! Important

7. Do you remember 30º, 60º, 90º triangles? Let 2a = 1

8. Do you remember 30º, 60º, 90º triangles?

9. The Unit Circle: Radian Measures and Coordinates

10. Lets find the Trig functions if Think where this angle is on the unit circle.

11. Find the Trig functions of Think where this angle is on the unit circle.