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cong yi dao gao kao shi ti de ming zhi dao jie fa tan jiu
Author(s): 
Pages: 63-64
Year: Issue:  4
Journal: ZHONGXUE SHUXUE ZAZHI(GAOZHONG BAN)

Abstract: 1问题缘起
  题目(2014年辽宁理第16题)对于c >0,当非零实数 a,b 满足4a2-2ab +4b2- c =0且使2a +b 最大时,3a -4b +5c 的最小值为。

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