Chapter 7, Practice Exercises #11

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For the following exercises, find all exact solutions to the equation on [0, 2π).

Rewrite the expression as a product instead of a sum: cos(2x) + cos(−8x).

7.2 Exercises:

7.3 Exercises:

7.4 Exercises:

7.5 Exercises:

7.6 Exercise:

Practice Exercises:

Review Exercises: