What is the antiderivative of (x-2)sinx(x2)sinx?

1 Answer
Sep 17, 2016

= - (x-2) cos x + sin x + C=(x2)cosx+sinx+C

Explanation:

do an IBP

int (x-2) sin x dx(x2)sinxdx

= int (x-2) d/dx (- cos x) dx + C=(x2)ddx(cosx)dx+C

= (x-2) (- cos x) - int d/dx (x-2) (- cos x) dx + C=(x2)(cosx)ddx(x2)(cosx)dx+C

= - (x-2) cos x + int cos x dx + C=(x2)cosx+cosxdx+C

= - (x-2) cos x + sin x + C=(x2)cosx+sinx+C