$\"\"$

\

The functions are $\"\"$ and $\"\"$ .

\

Definition of composite function : $\"\"$ .

\

$\"\"$

\

Domain of radical functions is $\"\"$ .

\

$\"\"$

\

Domain of the composite function $\"\"$ is $\"\"$ .

\

$\"\"$

\

Domain of the composite function $\"\"$ is $\"\"$ .