1.

Let S and S′ be the two foci of the ellipse x2a2+y2b2=1. If the circle described on SS′ as diameter touches the ellipse in real points, then 6e2=(where e is eccentricity of ellipse)

Answer» Let S and S be the two foci of the ellipse x2a2+y2b2=1. If the circle described on SS as diameter touches the ellipse in real points, then 6e2=(where e is eccentricity of ellipse)


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