1. The problem statement, all variables and given/known data f(x) = tan^-1[(10000-200x)/(26x^2-2750x+77725) need to find f'(x) 2. Relevant equations if f(x) = tan^-1 (x/a), then f'(x) = a/(a^2+ x^2) 3. The attempt at a solution ok...the attempt im willing to do on my own, just needing help to get it in the form of x/a. preciate it. thx.