Step 1:

The function is $\"\"$ .

Apply logarithm on each side.

$\"\"$

Quotient Property of logarithms : $\"\"$

$\"\"$

Product Property of logarithms : $\"\"$

Power Property of logarithms : $\"\"$

$\"\"$

Step 2:

$\"\"$

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

$\"\"$

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

$\"\"$

Solution:

$\"\"$