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11 Jun 2020
For a point P on an ellipse, let d be the distance from the center of the ellipse to the line tangent to
the ellipse at P. Prove that is constant as P varies on the ellipse, where and are the distances from P to the foci and of the ellipse.
For a point P on an ellipse, let d be the distance from the center of the ellipse to the line tangent to
the ellipse at P. Prove that is constant as P varies on the ellipse, where and are the distances from P to the foci and of the ellipse.
Joram GuingguingLv10
17 Jul 2020