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平面向量一题

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realnumber posted 2021-8-29 15:18 |Read mode

微信图片向量1.jpg

第2小题怎么做,n=3,容易,n=4分类讨论一下也勉强可以,n=5实在分类讨论不动了,太多了

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2025-6-8 08:31 GMT+8

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