You can
put this solution on YOUR website!The inverse of

is

, and vice-versa. Because of this inverse definition,

and also

.
Therefore, in order to "undo" the first "ln", you must raise both sides of the equation as a power of e. In other words, write
So this simplifies to
Now, raise both sides as a power of e again:
Final answer is
R^2 from SCC