Differentiate w.r.t x: 
Let y = 
, u =
, v =
, z=
Formula : 
According to the quotient rule of differentiation
If z = 
According to chain rule of differentiation
= 
= 
= 
1
Differentiate w.r.t x:
Let y = , u = , v = , z=
Formula :
According to the quotient rule of differentiation
If z =
According to chain rule of differentiation
=
=
=