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The Best Constants for a Double Inequality in a Triangle  
 
  Authors: Yu-dong Wu, Nu-Chun Hu, Wei-Ping Kuang,  
  Keywords: Inequality; Best Constant; Triangle.  
  Date Received: 08/08/08  
  Date Accepted: 02/02/09  
  Subject Codes:

51M16

 
  Editors: Sever S. Dragomir,  
 
  Abstract:

In this short note, by using some of Chen's theorems and classic analysis, we obtain a double inequality for triangle and give a positive answer to a problem posed by Yang and Yin [6].;



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