Suppose u and v are differentiable functions of x and that


u(1) = 2, u'(1)= 0, v(1)= 5, v'(1)=-1


Find the values of the following derivatives at x =1


a) d/dx (uv)


b) d/dx(u/v)


c) d/dx (v/u)


d) d/dx (7v-2u)