Question: (a) Use the substitution = /2 - x to evaluate the integral (b) Let n be a positive integer. Evaluate the integral /2 0 sin

(a) Use the substitution = π/2 - x to evaluate the integral

/2 0 sin x cos x + sin x dx.

(b) Let n be a positive integer. Evaluate the integral

/2 0 sin x cos x + sin x dx.

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