Question 399427
f(x) = 2^x
.
replace f(x) with y:
y = 2^x
flip the variables:
x = 2^y
solve for y:
x = 2^y
take log base two of both sides:
{{{log(2,x) = y}}}
.
therefore, the inverse is:
{{{f^-1(x) = log(2,x) }}}