The foci of the hyperbola are S(-3,- 2), S' (5,6). If its e= 2 then the equation of its directrix corresponding to focus S is :

The foci of an ellipse are S(-1,-1), S'(0,-2) its e=1/2, then the equation of the directrix corresponding to the focus S is

Find the equation of the hyperbola whose one focus is (-1, 1) , eccentricity = 3 and the equation of the corresponding directrix is x - y + 3 = 0 .

A parabola with focus S=(1,2) touches both the axes then the equation to directrix is

If the focus of a parabola is at (0,-3) and its directrix is y = 3, then its equation is

If the focus of a parabola is (0,-3) and its directrix is y=3, then its equation is