The foci of an ellipse are at and

MATHEMATICS · Subjective · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

The foci of an ellipse are at (−4,0)(-4,0) and (4,0)(4,0). The sum of the distances of any point on the ellipse from the two foci is 1010. Decide whether the point (3,1)(3,1) lies on the ellipse, giving a brief reason.

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