A circle is drawn with the two foci of an ellipse \frac{x^2}{a^2}+\frac{y^2}{b^2}=1 at the end of the diameter. What is the equation to the circle?

Correct Answer is : x2+y2=a2+b2

UPSC NDA I 2010 Mathematics Paper

Question : 42 of 120

Marks: +1, -0

A circle is drawn with the two foci of an ellipse ‌

+‌

=1 at the end of the diameter. What is the equation to the circle?

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