Suppose that the functions g andfare defined as follows. g(x) :x-7 f(x) = (x 1)(x+ 1) (a) Find (ii)(z). (b) Find all values that are NOT in the domain of 5;. f If there is more than one value, separate them with commas. (a). (3(2) = [l g ' (b) Value(s) that are NOT in the domain of } : U