Question

Derivitave of (x cos(x) sin(x))

Answer 1

use chain rule

Answer 2

Product rule works the same way with three terms:\[\Large\rm (uvw)'=u'vw+uv'w+uvw'\]

Answer 3

\[\large\rm (x \cos x \sin x)'=(x)' \cos x \sin x+ x(\cos x)' \sin x+ x \cos x(\sin x)'\]