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What is `int (x cos x + sin x) dx` equal to ? Where c is an arbitrary constantA. `x sin x + c`B. `x cos x + c`C. `-x sin x + c`D. `-x cos x + c`

Answer» Correct Answer - A
`int (x cos x + sin x) dx = int x cos x dx + int sin x dx`
`= x sin x - int sin x dx + int sin x dx = x sin x + c`


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