MCQ
If $f(x) = x^2$ and $g(x) =\sin x,$ then $ f(x).g(x)dx = $ ?
- ✓$2x \sin x + 2cos \ x - x^2 \cos x + c$
- B$x \cos x + \sin \ x + c$
- C$2x \sin x - 2cos \ x - x^2 \cos x + c$
- D$- x \cos x + \sin x + c$
✓
Answer
Correct option: A.
$2x \sin x + 2cos \ x - x^2 \cos x + c$
$2x \sin x + 2cos \ x - x^2 \cos x + c$
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