1. ## differentiation problem

Find the derivatives of the following functions stating the differentiation rules used:

For the functions (a) and (b) above, find f′′

(a) f(x) = ln(x^3 − 3*x^2)

(b) f(x) = x * cos(2*x + 1)

(c) f(x) = (e^(x^2))/(x^2+2x)