<PRE><B>Question 702849</B>
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Start over.  Your first step is incorrect.  You have to solve for *[tex \LARGE x] in terms of *[tex \LARGE y] and only THEN do you swap the variables.


The problem is, no matter what you do, you end up with a logarithm argument that is less than zero.  Since the domain of the log function is the positive reals, this dog won&#39;t hunt.


The inverse function is undefined, hence the original function is not invertible.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
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My calculator said it, I believe it, that settles it
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