1. DO NOW 14.6: Sum and Difference Formulas (PC 5.4)

2. Academy Algebra II 14.6: (PC 5.4): Using Sum and Difference Formulas
No Hw Tonight

3. Evaluate a Trig Function: Find the exact value.

4. Evaluate a Trigonometric Function

5. Write the expression as the sine, cosine, or tangent of an angle.

6. Find the exact value of the trig function given:

7. Find the exact value of the trig function given:

8. Academy Algebra II 14.6: (PC 5.4): Using Sum and Difference Formulas
Hw: p.952 (4-36 every other even)

9. Verify the identity.

10. Verify the identity.

11. Find all solutions of the equation in the interval

12. Find all solutions of the equation in the interval .

13. Find all solutions of the equation in the interval