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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 2024-12-8 00:18 |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 2024-12-8 00:38 from mobile
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 2024-12-8 00:49
I am majia of kuing

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