Question

x2 1. Let 32 + = 1 (b< a), be a ellipse with major axis 2 a b2 AB and minor axis CD. Let F, and F, be its two foci, with A, F,F2, B in that order on the segment AB. Suppose ZF CB = 90°. The eccentricity of the ellipse is 12​

Answer 1

Answer:

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Answer 2

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