3. (6 points) Find the secvalue of the critical point(s) of the function y = 6(2$+3)2. You must ShOW all supporting work. 4. Let m(a:), Mac), and p($) be differentiable and continuous functions. Determine the following. (a) (4 points) Determine the derivative of (b) (4 points) Determine the derivative of sin (m(x) ) y = ep(a)