Thread: How Good Am I? View Single Post
Emeritus
 Quote by murshid_islam does the answer come out to be $$-x^2\cos^{2}x + 2x\sin x + 2\cos x + C$$?
 Quote by Gib Z I did integration by parts a few times, I got $$I=\frac{\sin^2 x}{2} - x^2 \cos x$$ :D I think thats right. Note: This ones for x^2 sin x dx.