1.

define ellips, parabola.. ✍✍✍

Answer» Parabola:\xa0A parabola is the set of all points in a plane that are equidistant from a fixed line and a fixed point (not on the line) in the plane. Fixed line is called\xa0directrix\xa0of parabola/Ellipse:\xa0An ellipse is the set of all points in a plane, the sum of whose distances from two fixed points in the plane is a constant.


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