1. The problem statement, all variables and given/known data compute the inverse derivative of f(x) = x^3/(x^2+1) 2. Relevant equations n/a 3. The attempt at a solution My issue is a purely algebraic one... getting the inverse function! Attempting to solve for x yields no results! y = x^3/(x^2+1) y(x^2+1) = x^3 yx^2 + y = x^3 y = x^3 - yx^2 y = x^2(x - y) y/(x-y) = x cannot isolate x!!! help??