$\"\"$

The function is $\"\"$ .

First evaluate $\"\"$ .

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

$\"\"$ .

Now evaluate $\"\"$ .

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

$\"\"$

$\"\"$ .

$\"\"$

Find $\"\"$ .

Substitute $\"\"$ and $\"\"$ in the above function.

$\"\"$

$\"\"$ .