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Let F1 and F2 be the foci of the ellipse kx^2+y^2=1 where k>1 is a constant. Suppose that there is a circle which passes through F1 and F2 and which lies tangent to the ellipse at two points on the x axis. Compute k

 Dec 30, 2019
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The value of k is 5.

 Dec 30, 2019
 #2
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Atroshus,

If you think an answer is wrong then politely say so.  

It is not something you should report formally.

 Dec 31, 2019

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