For the integral

MATHEMATICS · Single correct · A Level · Mathematics · Integration · Integration

Problem

For the integral

\displaystyle \int 12x\,(x^{2}+4)^{5}\,dx

, which choice of

u

would most effectively simplify the integrand for antidifferentiation? (a)

u = 12x

(b)

u = 6x^{2}

(c)

u = x^{2}+4

(d)

u = (x^{2}+4)^{5}