$\"\"$

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

The function $\"\"$ is continuous for all values of $\"\"$ .

$\"\"$

$\"\"$ .

The composite function is $\"\"$ .

The composite function $\"\"$ is continuous for all values of $\"\"$ .

$\"\"$

The composite function $\"\"$ is continuous for all values of $\"\"$ .