SOLUTION: I need help on an explanation on why e^x & ln(x) are inverse functions. An example would be great. For example what is e^ln400 equivalent to

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Question 930249: I need help on an explanation on why e^x & ln(x) are inverse functions.
An example would be great.
For example what is e^ln400 equivalent to

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
ln x is often defined as the inverse of e^x, since it is the logarithm base e. There are several other definitions of ln x on Wikipedia, including the fact that .

e^(ln 400) = 400.