The equation of conic is
.
The general form of a conic is
.
Here
,
,
,
,
and
.
Find
.

The conic is a hyperbola.
\The angle is
.
Substitute
,
and
in the above equation.

Assume that the angle lies on second quadrant.
\Observe the diagram :
.
\
Find
and
.
Half angle identity :
.

Half angle identity :
.


Find equation for
and
.

Substitute
and
in the above equation.
.

Substitute
and
in the above equation.

Substitute
and
in
.



The standard form of equation is
.
The standard form of equation is
.