The sum of the focal distance from any point on the ellipse 9 x2 + 16 y2 = 144 is
3
6
8
4
If t1 and t2 be the parameters of the end points of a focal chord for the parabola y2 = 4 ax, then which one is true?
t1t2 = 1
t1t2 = -1
t1 + t2 = -1
If in a hyperbola, the distance between the foci is 10 and the transverse axis has length 8, then the length of its latus rectum is
9
9/2
32/3
64/3
The eccentricity of the hyperbola is
3/4
3/5
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
If the vertex of the parabola y = x2 - 16 x + k lies on x - axis, then the value of k is
16
64
-64
The focal distance of a point P on the parabola y2 = 12 x, if the ordinate of P is 6, is
12
The vertex of the parabola x2 + 2 y = 8 x -7 is
(9/1, 0)
(4,9/2)
(2, 9/2)
(4,7/2)
The distance between the foci of the conic 7x2 - 9y2 = 63 is equal to
1
The distance between the foci of the hyperbola x2 - 3 y2 - 4 x - 6 y - 11 = 0 is
10
