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Using the integration by parts, evaluate: 2x. sin x dx I = -2xcosx + 2sinx +C I = 2xcosx - 2sinx + C None

Using the integration by parts, evaluate: 2x. sin x dx I = -2xcosx + 2sinx +C I = 2xcosx - 2sinx + C None of these 7= -xcosx + sinx + C

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