The differential coefficient of with respect to is
Explanation for the correct option :
Step-1 : Assumption
Let and .
Step-2 : Simplification
Put . Then
and
Step-3 : Differentiating and with respect to
Differentiating with respect to , we get
Differentiating with respect to , we get
Step-4 : Finding the differential coefficient of with respect to
The differential coefficient of with respect to is given by
Hence, option (A) is the correct answer.