Chapter 7, 7.2 Exercises #3

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Explain to someone who has forgotten the even-odd properties of sinusoidal functions how the addition and subtraction formulas can determine this characteristic for f(x) = sin(x) and g(x) = cos(x).

7.2 Exercises:

7.3 Exercises:

7.4 Exercises:

7.5 Exercises:

7.6 Exercise:

Practice Exercises:

Review Exercises: