Step 1:

The function $\"\"$

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

$\"\"$

Apply the formula $\"\"$

Apply chain rule in derivatives.

$\"\"$

Step 2:

$\"\"$

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

$\"\"$

Apply the formula $\"\"$

$\"\"$

$\"\"$ .

Solution :

$\"\"$

$\"\"$ .