Chapter 7, 7.3 Exercises #1

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Explain how to determine the reduction identities from the double-angle identity cos(2x) = cos^{2} x − sin^{2} x.

7.2 Exercises:

7.3 Exercises:

7.4 Exercises:

7.5 Exercises:

7.6 Exercise:

Practice Exercises:

Review Exercises: