The function is , for
.
Rewrite the function as .
Differentiate on each side with respect to .
for all
, then
has an inverse.
Find the inverse function.
\.
Interchange and
terms.
Solve for .
Take natural logarithm on each side.
\Apply power rule of logarithm : .
Replace with
.
.
Therefore, the inverse function is .
The inverse function exists only for .
The inverse function is .
The inverse function exists only for .