ln 5 e = ? x Keep in mind that y=e and y = ln x are inverse functions of one another. ln 5 e , we can drop both the "e" and the "ln 5." We are left with 5 (answer). ln 5 Alternatively, we could take the ln of both sides of y = e
which will result in ln y = (ln 5) ln e. Note that ln e = 1 (these two functions are inverses of one another).
Then we are left with ln y = ln 5. Dropping the "ln" operator from both sides,
