Question 35664
The inverse or opposite operation of ln x would be {{{e^x}}}.  In other words to "undo" the "ln" in the {{{ln x = 4}}}, 
you must raise both sides as a power of "e".  It is important to realize that {{{e^(ln x) = x}}} and {{{ln(e^x)= x }}} .


{{{e^(ln x) = e^4}}}
{{{x = e^4}}}  


With a calculator, {{{e^4 = 54.5982}}} rounded to four decimal places.


R^2 at SCC