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[数列] 2015东南竞赛题

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nash Posted 2015-7-27 23:32 |Read mode

东南数列.png

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其妙 Posted 2015-7-28 12:03

西西加强：

6blog图片.png

妙不可言，不明其妙，不着一字，各释其妙！

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其妙 Posted 2015-7-28 23:50

高一的东南竞赛题：

5blog图片.png

5blog图片.jpg

妙不可言，不明其妙，不着一字，各释其妙！

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其妙 Posted 2015-7-29 23:24

只有第5题看起是软柿子，其余都不敢看下去……

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Author| nash Posted 2015-7-29 23:37

回复 4# 其妙 QQ图片20150729233131.png

QQ图片20150729233131.png

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Author| nash Posted 2015-7-29 23:41

马丹，都是第一题能看…

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其妙 Posted 2015-7-30 08:04

回复 6# nash
NB
2楼的加强如何证明

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