$\"\"$

The function is $\"\"$ .

The domain of the function is $\"\"$ .

$\"\"$

Apply first derivative with respect to $\"\"$ .

$\"\"$

Apply second derivative with respect to $\"\"$ .

$\"\"$

Determine the values of $\"\"$ , at which $\"\"$ =0.

$\"\"$

$\"\"$ is not in domain of the function.

So the function does not have any inflection points.

The test interval is $\"\"$ .

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

Intervals	Test value	\ Sign of $\"\"$ \	Conclusion
$\"\"$	\ $\"\"$ \	\ $\"\"$ \	Concave downwards

The function is concave downwards in the intervals $\"\"$ .

$\"\"$

The function is concave downwards in the intervals $\"\"$ .