The Best Constants for a Double Inequality in a Triangle

نویسندگان

  • YU-DONG WU
  • WEI-PING KUANG
چکیده

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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تاریخ انتشار 2008