1. Signs of functions in each quadrant

2. Page 4 III III IV To determine sign (pos or neg), just pick angle in quadrant and determine sign. Now do Quadrants III and IV.

3. Page 4

4. In what quadrant is sin positive and cos negative?

5. Page 4

8. The UNIT CIRCLE Any point on the unit circle can be found by taking the cos and sin of the given angle. Page 4

9. Every point on the unit circle has coordinates So, when they ask you to determine the sin of theta, it is just the second coordinate. Page 4

11. Page 5

12. REMEMBER

13. Page 5