Question

Differentiate. f(x) = x2 sin(x)

Answer 1

$\dfrac{\mathrm d}{\mathrm dx}(x^2\sin x)=x^2\dfrac{\mathrm d}{\mathrm dx}(\sin x)+\sin x\dfrac{\mathrm d}{\mathrm dx}(x^2)=x^2\cos x+2x\sin x$