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[问题] 来灌水

楼主: darkseer   2007-08-11 19:03:13
基本上是来灌水的 XD
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Prove that for any positive reals a,b,c we have
a(b+c) a^2
3 * sigma
作者: peter50216 (皮皮)   2007-08-11 20:04:00
听起来好可怕...
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