Question D7 . Let f and g be differentiable functions on (-oo, 2]. If f(2) = 1, f'(2) = 2, g(2) = 3, and g'(2) = -1. Let h(x) be as below. Is h(x) differentiable for all real numbers? h(x) = f(x)g(x) x52 2x2 - 3x +1 x>2 Question D8 Let f(x) be defined as follows. f (x) = if x 5 Find c, d so that f(x) is differentiable for all real numbers