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Which antiderivative corresponds to cos 5x?
Asin 5x/5 + C
Bsin 5x + C
C5 sin 5x + C
D−sin 5x/5 + C
Answer & Solution
Correct answer: A. sin 5x/5 + C
Substituting u = 5x turns the integral into (1/5)∫cos u du, which is sin 5x/5.
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