f(x)=u(x) • v(x)f'(x)=u(x) • v'(x)+u'(x) • v(x)
f(x)=u(x) : v(x)f'(x)=[u'(x) • v(x)-u(x) • v'(x)] : v(x)²
f(x)=u[v(x)]f'(x)=u'[v(x)] • v'(x)