$\"\"$

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

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

$\"\"$ indicates that $\"\"$ is excluded from the domain of $\"\"$ .

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

$\"\"$ indicates that $\"\"$ cannot be equal to $\"\"$ .

Find the excluded values for $\"\"$ by substituting $\"\"$ .

$\"\"$

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

$\"\"$

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