I need to find the inverse of this problem
f(x)=3^x-1
After doing my maths, I got an answer of
f^-1(x)=log3(x)+1
Thank you so much to whoever assists me with this topic
Let's write
y = 3^(x - 1) take the log of both sides
log y = log 3^(x - 1)
log y = (x - 1)log 3
log y / log 3 = x - 1
[ log y / log 3 ] + 1 = x swap x and y
[ log x / log 3 ] + 1 = y = the inverse
+68 
