Question: (a) Use the reduction formula in Example 6 to show that sin2x dx = x/2 - sin 2x/4 + C (b) Use part (a)

(a) Use the reduction formula in Example 6 to show that
∫ sin2x dx = x/2 - sin 2x/4 + C
(b) Use part (a) and the reduction formula to evaluate
∫ sin4x dx

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