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本刊文 [1]利用微分法证明如下不等式 :已知x ,y ,z∈R+,且x +y +z =1,则 (1x -x) (1y - y) (1z-z)≥ (83) 3 (1)该文刊出后 ,收到福州二十四中学杨学枝 ,武汉市第六中学刘大岱 ,江西广丰中学朱水龙 ,长沙电力学院数学与计算机系梅宏 ,湖北监利新沟中学杨美璋 ,重庆市武隆县中学李来敏、杨小林等人的初等证明 ,限于篇幅 ,下面选登一种初等证法
This article [1] uses the differential method to prove the following inequality: Given x, y, z ∈ R+, and x + y + z =1, then (1x -x) (1y - y) (1z-z) ≥ ( 83) 3 (1) After the publication of this article, he received Fu Xue 24th Middle School Yang Xuezhi, Wuhan No. 6 Middle School Liu Dazhao, Jiangxi Guangfeng Middle School Zhu Shuilong, Changsha Institute of Electric Power Mathematics and Computer Department Mei Hong, Hubei Jianli Xingou Middle School Yang Meizheng, Chongqing Municipality Wulong County Middle School Li Laiming, Yang Xiaolin, et al.’s elementary proof, limited by space, choose to pass an elementary certification