#### HallsofIvy

Science Advisor

Homework Helper

- 41,664

- 852

What DEFINITION of inverse are you using? In any book I've seen, two functions f(x) and g(x) are inverse to each other if and only f(g(x))= x andByrgg said:Please someone just explain how b ^ log_b (x) = x shows that log_b (x) and b ^ x are inverse. I know they're inverse, but I just need to know how you get this relationship out of the previously mentioned equation.

g(f(x))= x.