How do you find the inverse of #y=log_x4#?
1 Answer
Mar 28, 2018
Explanation:
I would recommend using the base change rule for this one.
Let's express
(Note: As an IB student I use
Therefore
We rearrange the equation to isolate x.
Rewrite the equation using e raised to the power of both sides so that the equation is equal to x.
Using the relation
This gives us
Having rearranged the equation all we need to do is swap y and x to find the inverse.