Find ∫xcos(x)dx\int x \cos(x) dx∫xcos(x)dx.
xsinx+cosx+Cx\sin x + \cos x + Cxsinx+cosx+C
xsinx−cosx+Cx\sin x - \cos x + Cxsinx−cosx+C
−xsinx+cosx+C-x\sin x + \cos x + C−xsinx+cosx+C
sinx+C\sin x + Csinx+C