If distance between directrices of a rectangular hyperbola is 10, then distance between its foci will be
10√2
5
5√2
20
The equation of directrix of the ellipse is
3 y = ± 5
y = ± 5
3 y = ± 25
y = ± 3
The eccentricity of the conic is
The focal distance of a point P on the parabola y2 = 12 x, if the ordinate of P is 6, is
12
6
3
9
The sum of the focal distance from any point on the ellipse 9 x2 + 16 y2 = 144 is
8
4
The equation of the latus rectum of the parabola x2 + 4 x + 2 y = 0 is equal to
2 y + 3 = 0
3 y = 2
2 y = 3
3 y + 2 = 0
The vertex of the parabola x2 + 2 y = 8 x -7 is
(9/1, 0)
(4,9/2)
(2, 9/2)
(4,7/2)
If the foci and vertices of an ellipse be (±1,0) and (±2,0) then the minor axis of the ellipse is
2√5
2
2√3
The eccentricity of the hyperbola 9 x2 - 16 y2 - 18 x - 64 y - 199 = 0 is
16/9
5/4
25/16
zero
The sum of the distances of a point (2,-3) from the foci of an ellipse 16 (x-2)2 + 25 (y + 3)2 = 400 is
50
32
