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[几何] 圆锥曲线外心轨迹

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hbghlyj posted 2020-5-18 14:08 |Read mode

给定点A,圆O,圆锥曲线e，BC为与e相切的圆O的动弦，求证：△ABC的外心的轨迹为圆锥曲线

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original poster hbghlyj posted 2020-7-15 21:58

Last edited by hbghlyj 2020-7-16 12:56类似问题
等面三面角.png

等面三面角.png

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original poster hbghlyj posted 2020-8-16 18:18

回复 1# hbghlyj
math.stackexchange.com/questions/3755638/a-lo … mment7732642_3755638

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2025-7-15 14:00 GMT+8

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