$\"\"$

The function is $\"\"$ .

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

The square root of the function should not be a negative.

So, $\"\"$

$\"\"$

Inside function must be $\"\"$ , therefore $\"\"$ .

Then $\"\"$ lies $\"\"$ .

$\"\"$

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