$\"\"$

The function is $\"\"$ .

Apply derivative on each side with respect to $\"\"$ .

$\"\"$

$\"\"$ .

$\"\"$

Find the critical numbers of $\"\"$ by equating $\"\"$ .

$\"\"$

The function has absolute maximum at $\"\"$ .

Substitute $\"\"$ in $\"\"$ .

$\"\"$

Absolute maximum of the function is $\"\"$ .

$\"\"$

Absolute maximum of the function is $\"\"$ .