Differentiate the following functions with respect to x:
Let 
On differentiating y with respect to x, we get
We know
[using chain rule]
Recall that
(quotient rule)
However,
and derivative of a constant is 0.
Thus, 
20
Differentiate the following functions with respect to x:
Let
On differentiating y with respect to x, we get
We know
[using chain rule]
Recall that (quotient rule)
However, and derivative of a constant is 0.
Thus,