NIMCET 2013 Question Paper with solutions

Question : 46 of 120

Marks: +1, -0

The sum of the focal distances of any point on the ellipse

x^2/a^2+y^2/b^2

= 1 with eccentricity e is given by :

Solution:

∴ Standard result regarding distance between two focal

PS+PS'=2a

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