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Question -

If┬а

A.┬аcos┬аx┬а+┬аx┬аsin┬аx

B.┬аx┬аsin┬аx

C.┬аx┬аcos┬аx

D.┬аsin┬аx┬а+┬аx┬аcos┬аx



Answer -

Integrating by parts, weobtain

Hence, the correct answeris B.

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