Answer:

Step-by-step explanation:
Since, for finding the inverse of a function f(x) we follow the following steps,
Step 1 : Replace f(x) by y,
Step 2 : Interchange x and y,
Step 3 : isolate y in the left side,
Step 4 : Replace y by 
Given equation is,

Here, we do not need to apply step 1 and step 4,
Now, Interchange x and y,



Taking square root both sides,

Which is the required equation of inverse of the given equation.