Use f(x) = 20x2e0.9x to answer the questions below.

Use /(x) = 20x20-0.9% to answer the questions below. (a) Find / (x) = (b) Find the exact critical points of f and classify each as a local minimum, local maximum, or neither. (smaller value) This critical point is --Select-.- X = (larger value) This critical point is ---Select