楼主: BOSS@13
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[闲情逸话] 早上起来发现微博上被一道题刷屏了 |
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发表于 2012-8-22 23:54:28
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发表于 2012-8-23 02:52:27
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发表于 2012-8-23 23:58:56
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发表于 2012-8-27 23:26:24
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点评
AE - 2n Cos A ≥ BD - 2n Cos B 包含了两者都为0的情况
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发表于 2012-8-28 02:19:14
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发表于 2012-8-29 16:04:33
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发表于 2012-8-30 12:53:32
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