The functions are and
.
Find .
Consider .
Differentiate on each side with respect to .
Quotient rule of derivatives :.
.
Find .
Consider.
Differentiate on each side with respect to .
Quotient rule of derivatives :.
.
Observe and
.
Clearly, .
Obtain the relation between and
.
and
.
Consider .
Rewrite the function.
\.
.
The relation between and
is
.