Find d2ydx2\frac{d^2y}{dx^2}dx2d2y for y=xsinxy = x\sin xy=xsinx.
2cosx−xsinx2\cos x - x\sin x2cosx−xsinx
sinx+xcosx\sin x + x\cos xsinx+xcosx
−xsinx-x\sin x−xsinx
2cosx+xsinx2\cos x + x\sin x2cosx+xsinx