12. Find the inverse function of g(x) = ln(x^3)
I'm not totally sure if this is the correct solution for solving this, but here it goes.
$\displaystyle y=\ln{x^3}$
Then change the variables
$\displaystyle x=ln{y^3}$
and after that you get y.
$\displaystyle e^x=y^3$
$\displaystyle y=\sqrt[3]{x}$
Hope i didn't mix this with something else.