### Home > PC > Chapter 6 > Lesson 6.2.2 > Problem 6-89

6-89.

Use the Zero Product Property. Then combine parts (a) and (b).

Solve for all solutions.

Add a 2*πn* to each solution in [0,2*π*] where *n* is any integer.

6-89.

Use the Zero Product Property. Then combine parts (a) and (b).

Solve for all solutions.

Add a 2*πn* to each solution in [0,2*π*] where *n* is any integer.