Suppose that

f (1) = 2 f'(1) = 3 f (2) = 1 f' (2) = 2
g(1) = 3 g'(1) = 1 g(2) = 1 g' (2) = 4
(a) If S(x) = f (x) + g(x), find S'(1).
(b) If P(x) = f (x) g(x), find P'(2).
(c) If Q(x) = f (x)/g(x), find Q'(1).
(d) If C(x) = f (g(x)), find C'(2).