$\"\"$

The function $\"\"$ .

The function $\"\"$ is continuous on $\"\"$ .

For a limit to exist, the left hand limit is equal to right hand limit.

Consider the left hand limit $\"\"$ .

$\"\"$

Consider the right hand limit $\"\"$ .

$\"\"$

$\"\"$

For a limit to exist, $\"\"$ .

$\"\"$

The value of $\"\"$ is $\"\"$ .

$\"\"$

The value of $\"\"$ is $\"\"$ .