LET: b=3 a Find all global extrema for f(x) = x 3 + 3x 2 + 2 on the closed interval [b - 6, b - 2]. b) Suppose that the third degree Taylor polynomial of the function f(x) about x = 1 is: T3 f(x) = (9 - 2b)x 3 . Give a linear approximation for f(1.1)