1. The problem statement, all variables and given/known data f(x)= x^3 + 3sinx + 2cosx, a=2 2. Relevant equations (f^-1)'(a)= 1 / f'(f^-1(a)) 3. The attempt at a solution I am lost as to where to start on this problem. Can someone get me going in the right direction? Thanks in advance.