Tips and Tricks on Conic Sections


 


1
The locus of a point in a plane which moves in the plane in such a way that the ratio of its distance from a fixed points (focus) in the same plane to its distance from a fixed straight line (directrix) is always constant, which is always less than unity.



2
The vertex divides the join of focus and point of intersection of directrix with axis internally and externally in the ratio e: 1.



   3


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