The function is
.
Consider
.
Apply derivative on each side with respect to
.


Derivative of inverse Trigonometric functions:
and
.

Quotient rule of derivative:
.



The function is
.
For all values of
,
, a constant.
Since the derivative of the function
.
if
.
For all values of
,
, a constant.
Find the value of
, substitute
in
.




if
.
For all values of
,
, a constant.
Find the value of
, substitute
in
.




.

.