Homework Statement
Let x ϵ R such that f'(x) = 3x^2. Prove that f(x) = x^3 + c for some c ϵ R using the Mean Value Theorem.
Homework Equations
The Attempt at a Solution
I used two functions f(x) and g(x) that have the same derivative namely f'(x). Applying the theorem I am able...