4. Let f and g be differentiable functions with derivatives f' and g', respectively. Let g' be differentiable with derivative g" and assume that f(2) f'(2) = 4 g'(0) = 1 f Find h'(2). Show all work. (a) Let h(x) = xe g'(x) (b) Let H(x) = Find H' (O). Show all work.