$\"\"$

The function is $\"\"$ .

Fundamental theorem of calculus :

If $\"\"$ is continuous on $\"\"$ , then the function $\"\"$ is defined by $\"\"$ is continuous on $\"\"$ and differentiable on $\"\"$ , then $\"\"$ .

Here $\"\"$ .

$\"\"$ .

$\"\"$

Find the critical points by equating $\"\"$ .

$\"\"$

$\"\"$ .

Critcal points are $\"\"$ and $\"\"$ .

The test intervals are $\"\"$ , $\"\"$ and $\"\"$ .

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

\ Interval \	Test Value	Sign of $\"\"$	Conclusion
$\"\"$	$\"\"$	$\"\"$	Decreasing
$\"\"$	$\"\"$	$\"\"$	\ Increasing \
$\"\"$	$\"\"$	$\"\"$	Decreasing

The function is increasing on the interval $\"\"$ .

$\"\"$

The function is increasing on the interval $\"\"$ .