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original poster: hongxian

[几何] 请教一个向量问题,先谢谢了!

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走走看看 posted 2017-10-26 21:48
回复 11# 其妙

证得很好,但有一点笔误。$当n是偶数时,m=\frac{n+2}{2},错误,应改为m=\frac{2k+n}{2}$。

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走走看看 posted 2017-10-26 22:51
回复 34# 007

高!

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$\LaTeX$ formula tutorial

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2025-7-20 05:43 GMT+8

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