$\"\"$

The differentiable function $\"\"$ satisfies the following conditions and has $\"\"$ as its only critical numbers.

$\"\"$ and $\"\"$ and $\"\"$ .

The function is

Let $\"\"$

Graph :

$\"\"$

The function is $\"\"$ .

Find the limit as approaches to infinity.

$\"\"$ .

$\"\"$

The function of $\"\"$ .

$\"\"$

Graph of the function is $\"\"$

$\"\"$

$\"\"$ .