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[函数] 请教数列题目安徽11年初赛第11题

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wdjlhx Posted at 2014-6-29 09:28:39 |Read mode

设f(x)=ax^3+bx+c (a,b,c是实数),当0≤x≤1时,0≤f(x)≤1.求b的最大可能值

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kuing Posted at 2014-6-30 17:54:09

以前写的：

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