Question

In co-ordinate geometry what has the same function to a parabola as a director circle to circle

Answer 1

equation of director circle is X^2 + Y^2= 2a^2
dunno about the parabola!!

Answer 2

Indro actually think what is the fuction of the director circle

Answer 3

what do you mean by "function" of director circle,i know its equation only!!

Answer 4

what is the special charecteristics of the director circle, there lies the answer

Answer 5

yeah, it's got a radius of sqrt 2 units, what else??

Answer 6

If you draw tangents to the circle from any point on the director circle the tangents are mutually perpendicular to each other, that property

Answer 7

Yeah forgot that one!!!

Answer 8

@rajarshi tell mani about that gravitation sum