1.

The normal at an end of a latus rectum of the ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 passes through an end of the minor axis if:

Answer»

`e^4+e^2=1`
`e^3+e^2=1`
`e^2+e=1`
`e^3+e=1`

ANSWER :A


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