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.
\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
.