The function is $\"\"$ .

Solve the equation for $\"\"$ .

$\"\"$

Consider the function $\"\"$ .

Differentiate on each side with respect to $\"\"$ .

$\"\"$

Rearranging the above equation.

$\"\"$ .

Differentiate on each side with respect to $\"\"$ .

$\"\"$

Substitute $\"\"$ in the above equation.

$\"\"$

Now substitute $\"\"$ value in above equation.

$\"\"$

The second derivative of a function is $\"\"$ .