The curve is
\ \
Differentiate on each side with respect to
. \ \
\ \
Apply product rule in derivatives
\ \
\ \
\ \
is slope of the tangent line. \ \
The tangent line is parallel to
\ \
Write the equation
in slope intercept form
, where
is slope and
is
-intercept.
\ \
\ \


\ \
\ \
Using the
- value find the corresponding
- value with the curve. \ \


Therefore tangent point is
\ \
Find the tangent line equation, substitute the values of
and
in the slope intercept form of an equation
.


Substitute
and
in
.
\ \
Solution :
\Tangent line is
.