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The equation is .
Rewrite the above equation .
Compare the above equation with polar equation of conic .
Here and .
Since , the equation is hyperbola.
The directrix of the hyperbola is .
The general equation of hyperbola in rectangular form : .
The vertices lie on the transverse axis.
The vertices occur when and .
Case 1 : When .
Substitute in the above equation.
Case 2 : When .
Substitute in the above equation.
The polar coordinates of the vertices are and correspond to the rectangular coordinates are and .
The hyperbola’s center is the midpoint of the vertices .
The distance between the center and each vertex is .
The distance from the center to the focus at is .
Substitute corresponding values in the general equation of hyperbola.
Substitute corresponding values in .
The equation of hyperbola is .
The equation of hyperbola is .
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