If ∫ex[f(x) + f'(x)].dx = ex.sin x, then f(x) = (A) sin x(B) -sin – InterviewSolution

1.	If ∫ex[f(x) + f'(x)].dx = ex.sin x, then f(x) = (A) sin x(B) -sin x(C) cos x - sin x(D) sin x + cos x
Answer» Answer is (A) sin x

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