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8 August, 09:51

What is the eccentricity of the ellipse if its major axis is twice its minor axis?

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  1. 8 August, 13:05
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    given major axis is four times its minor axis. so a=4b

    eccentricity, e = square root of (a^2-b^2) / a

    = square root of ((4b) ^2-b^2) / (4b)

    = square root of (15b^2) / (4b)

    = √15 b / (4b)

    = √15/4 = 0.968
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