G) At what values of x is p not differentiable? At what values of x is q not differentiable? Why? (b) Let r(x) = p(x) + 2q(x). At what values of x is r not differentiable? Why? (c) Determine r 0 (−2) and r 0 (0). (d) Let C(x) = p(q(x)). Determine C 0 (0) and C 0 (3.) (e) Find a value of x for which C 0 (x) does not exist. Explain your thinking. (f) Let Y (x) = q(q(x)) and Z(x) = q(p(x)). Determine Y 0 (−2) and Z 0 (0).