SHARP INEQUALITIES FOR TRIGONOMETRIC AND HYPERBOLIC FUNCTIONS

被引：14

作者：

Chen, Chao-Ping ^{[1
]}

Sandor, Jozsef ^{[2
]}

机构：

[1] Henan Polytech Univ, Sch Math & Informat, Jiaozuo City 454000, Henan Province, Peoples R China

[2] Univ Babes Bolyai, Dept Math, Cluj Napoca 400084, Romania

来源：

Journal of Mathematical Inequalities | 2015年 / 9卷 / 01期

关键词：

Inequalities; trigonometric functions; hyperbolic functions; HUYGENS INEQUALITIES; CUSA-HUYGENS; WILKER;

D O I：

10.7153/jmi-09-19

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We establish several sharp inequalities for trigonometric and hyperbolic functions. Our results sharpen some known inequalities.

引用

页码：203 / 217

页数：15

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