$\int x^2 \sin x d x$
Answer & explanation
Correct answer: option 3
By parts
$I=-x^2 \cos x+2 x \sin x+2 \cos x+c$ with alternate +, – sign.
Hence (3) is the correct answer.
$\int x^2 \sin x d x$
Correct answer: option 3
By parts
$I=-x^2 \cos x+2 x \sin x+2 \cos x+c$ with alternate +, – sign.
Hence (3) is the correct answer.