Question: (a) Rewrite the given integral in a form that does not involve a power of cosine. Choose the correct answer below. (b) Use a change

(a) Rewrite the given integral in a form that does not involve a power of cosine. Choose the correct answer below.

(b) Use a change of variables to evaluate the second of these integrals. What is the best choice of u for the change ofvariables?

(c) Find du.

(d) Rewrite the second of the two integrals found above using this change of variables.

(d) Evaluate the definite integral.

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