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[几何] 一道初中的抛物线题目 求几何法或者解析方法

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facebooker Posted at 2024-12-8 00:18:15 |Read mode
如图:

抛物线,极点极线

抛物线,极点极线

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爪机专用 Posted at 2024-12-8 00:38:52 From the mobile phone
高中解几搞极点极线也算了,现在连初中也搞起来了吗?

Q的轨迹就是P对抛物线的极线,PQ最小就是垂直于极线时。

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一针见雪!  Posted at 2024-12-8 00:49
I am majia of kuing

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