Coordinate Axes in Three Dimensional Space
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A conic section is a locus of a point P which moves in such a way that its distance from a fixed point S always bears a constant ratio to its distance from a fixed line, all being in the same plane. The fixed point is called …… and the fixed line is called ……
Centre, directrix
Focus, line of axis
Centre, line of axis
Focus, directrix
The number of points, having both co- ordinates as integers, that lie in the interior of the triangle with vertices (o, 0), (o, 41) and (41, o) is:
780
901
861
820
Find the direction of the x-axis.
(a) Outward (towards you)
(b) Inward (away from you)
(d) It can be both outward or inward
(c) Towards left(your left hand side)
Perpendicular distance from the origin is 5 units and the angle made by the perpendicular with the positive x-axis is 30∘.
The equation of the parabola with vertex at (1, 2) and focus at (2, 0) is:
(x – 2)2 = 8(y – 1)
(y – 2)2 = 8(x – 1)
(x – 1)2 = 4(y – 2)
(x – 1)2 = 8(y – 2)