若干三角函数不等式  

On Some Inequalities for Trigonometric Functions

作　　者：时统业[1] 施未来[1] 陆敏[1] 

机构地区：[1]海军指挥学院浦口分院,江苏南京211800

出　　处：《高等数学研究》2012年第5期10-12,共3页Studies in College Mathematics

摘　　要：借助Huygens不等式、Jordan不等式等常用三角函数不等式,应用函数单调性和Cauchy微分中值定理导出若干新的三角函数不等式.In this paper, by using the monotonicity several new inequalities for trigonometric functions are established of functions, Cauchy Mean Value Theorem, and some common inequalities for trigonometric functions such as Jordan inequality and Huygens inequality.

关 键 词：三角函数不等式 Huygens不等式 JORDAN不等式 CAUCHY中值定理 单调性 

分 类 号：O178[理学—数学]