Suppose u and v are functions of x that are differentiable at x = 0 and that u(0) = - 2, u'(0) = 2, v(0) = - 1, and v'(0) = 4. Find the values of the following derivatives at x = 0. d a. dx (uv) d b. dx d C. dx d d. (6v - 7u) dx