Please answer the following in full:

Find the derivative for each of the following functions. 1. Find the derivative for g(x) = (x2 + 1) (3x4 - 2x3) verify by expanding, then finding the derivative of the polynomial. 2. Find the derivative for k(x) = (5x4 + 2) (3sin x) 3. Find the derivative for m(x) = -ex cos x at x = 1 both graphically and algebraically