$\"\"$

The function is $\"\"$ .

All possible values of $\"\"$ is the domain of the function.

The denominator of the function should not be the zero.

$\"\"$

Take square root each side.

$\"\"$

$\"\"$ .

Hence, the domain of function is all real values of $\"\"$ except $\"\"$ and $\"\"$ .

The domain set is $\"\"$ .

$\"\"$

The domain set is $\"\"$ .