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
.