The
and
.
Find intersection points.
\Substitute
in
.

.
Solutions for the equation is
.
The intersection points is
.
The curve equation is
.
Differentiate on each side with respect to
.

At point
, slope of the tangent line is
.
The point-slope form of line equation is
.
Substitute
is
and
in the point slope form..

The tangent line equation is
.
The curve equation is
.
Differentiate on each side with respect to
.
.

At point
, slope of the tangent line is
.
The point-slope form of line equation is
.
Substitute
is
and
in point slope form.

The tangent line equation is
.
Graph:
\
Observe from the graph :
\Both the tangents are perpendicular to each other.
\The two curve equations are orthogonal to each other.
\The two curve equations are orthogonal to each other.