CalculusMediumThe Derivative ShareThe Derivative · Medium problemLet g(x)=f(x)+3g(x) = f(x) + 3g(x)=f(x)+3 where f′(9)=12f'(9) = 12f′(9)=12. What is g′(9)g'(9)g′(9)?Check Show answer Walk through it step by step Practice more like this Review this concept