JEE MATHEMATICS MCQ: ELLIPSE

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Application +4 | -1

The radius of the circle passing through the foci of the ellipse

\frac{{{x^2}}}{4} + \frac{4}{7}{y^2} = 1

and having its centre at

\left( {\frac{1}{2},\;2} \right)

, is

View answer and explanation

Correct option: A

\sqrt 5

Option A (

\sqrt 5

) is correct because the radius is calculated using the distance formula between the focus and the center of the circle.

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O