$\"\"$

\

The function is $\"\"$ .

\

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

\

$\"\"$

\

$\"\"$

\

Apply product rule of derivative: $\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ \ \

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

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

\

$\"\"$

\

The Quotient rule of Derivatives: $\"\"$ .

\

$\"\"$

\

Apply Product rule of derivative : $\"\"$

\

$\"\"$

\

$\"\"$

\

Substitute $\"\"$

\

in the above equation.

\

$\"\"$ . \ \

\

$\"\"$

\

$\"\"$

\

The second derivative of the function is

\

$\"\"$