Step 1 :

The equation is $\"\"$ .

Differentiate with respect to $\"\"$ .

$\"\"$ .

Sum rule of derivative : $\"\"$ .

$\"\"$

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

Power rule of derivative : $\"\"$ .

$\"\"$

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

$\"\"$

$\"\"$ .

Thus, the value of $\"\"$ is $\"\"$ .

Solution :

The value of $\"\"$ is $\"\"$ .