| 应用常数"1"解竞赛题 |
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| 引用本文： | 宇永仁,邓庆帅,孟宪吉.应用常数"1"解竞赛题[J].沈阳师范大学学报(自然科学版),2005,23(4):418-420. |
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| 作者姓名： | 宇永仁 邓庆帅 孟宪吉 |
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| 作者单位： | 沈阳师范大学,数学与系统科学学院,辽宁,沈阳,110034 |
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| 摘 要： | 给出了应用常数“1”解竞赛题的一些技巧,从两个方面进行了论述.一是把一些表达式化为“1”;二是把“1”进行转换,使问题得以解决.实质上是转化思想的体现,是解决问题的常用方法技巧.
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| 关 键 词： | 倒数 均值不等式 对偶式 变更主元 |
| 文章编号： | 1008-374X（2005）04-0418-03 |
| 收稿时间： | 2005-06-20 |
| 修稿时间： | 2005年6月20日 |
Use constant "1" to solve contest questions |
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| YU Yong-ren,DENG Qing-shuai,MENG Xian-ji.Use constant "1" to solve contest questions[J].Journal of Shenyang Normal University: Nat Sci Ed,2005,23(4):418-420. |
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| Authors: | YU Yong-ren DENG Qing-shuai MENG Xian-ji |
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| Abstract: | This text provides some skills which uses the constant "1" to solve the contest questions.It was described from two respects:First,turn some representatives into "1";Second,change "1" to another representatives.Thus the problems will be solved,and in fact,it is the embodiment of the transform thought,and it is commonsense method and skill of solving problem. |
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| Keywords: | reciprocal number mean value inequality dual form alter main element |
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