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解析几何

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苏少波Daniel

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苏少波Daniel Posted 2017-8-2 01:19 |Read mode

求教

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kuing Posted 2017-8-2 01:37

伸缩显然不影响结论，于是变成圆，就易证了

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苏少波Daniel

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Author| 苏少波Daniel Posted 2017-8-2 16:51

我直接算，麻烦得要死。水平较低，能不能麻烦你给个详解？
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伸缩显然不影响结论，于是变成圆，就易证了
kuing 发表于 2017-8-2 01:37

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