$\"\"$

The function is $\"\"$ .

The given function is a rational function.

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

The denominator of the function should not be the zero.

The denominator of the expression is a radical expression.

So the expression under the square root (the radicand) must be nonnegative $\"\"$ . $\"\"$

Solve the inequality $\"\"$ .

$\"\"$ .

The domain of $\"\"$ is all real numbers greater than $\"\"$ .

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

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