1. Chapter 3
Section 5

3. Theorem

4. Figure

5. Use Sum and Difference Formulas to Find Exact Values

6. Example Find the exact value of
Using the Difference Formula to Find an Exact Value
Find the exact value of

7. Solution

9. Theorem

10. Example

11. Solution

12. Figure

13. Figure

14. Use Sum and Difference Formulas to Establish Identities

15. Example

16. Solution

17. Theorem

18. Example

19. Example 8 Solution

20. Use Sum and Difference Formulas Involving Inverse Trigonometric Functions

21. Example

22. Solution

23. Solve Trigonometric Equations Linear in Sine and Cosine

24. Example

25. Solution

26. Solution continued

27. Solution continued

28. Solution continued
Figure 29

29. Figure