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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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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= |
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