When evaluating the integral

MATHEMATICS · Single correct · CBSE · Mathematics · Integrals · Integrals

Problem

\int x^{2}\cos x\,dx

, which of the following choices for

u

will most effectively simplify the calculation? (a)

u = \cos x

(b)

u = x^{2}

(c)

u = 1

(d)

u = x