$\"\"$

The function is $\"\"$ .

The function $\"\"$ is one-to-one for $\"\"$ .

$\"\"$

The function is $\"\"$ .

Rewrite the function as $\"\"$ .

Find the inverse function.

$\"\"$ .

Interchange the variables $\"image\"$ and $\"image\"$ .

$\"\"$

Substitute $\"\"$ .

$\"\"$ .

The inverse of the function is $\"\"$ .

$\"\"$

The inverse function is $\"\"$ .

The domain of a function is all values of $\"\"$ , those makes the function mathematically correct.

The radicand should be greater than or equals to zero.

$\"\"$

Thus, the domain of $\"\"$ is $\"\"$ .

$\"\"$

The inverse function is $\"\"$ and its domain is $\"\"$ .