Refinements and generalizations of some inequalities of Shafer-Fink’s type for the inverse sine function

Journal of inequalities and applications

Branko Maleš¹ 

关键词: sharpening;    generalization;    Shafer-Fink’s double inequality;    arc sine function;    33B10;    26D05;   

DOI  :  10.1186/s13660-017-1554-1

学科分类：数学（综合）

来源: SpringerOpen

【 摘 要 】

In this paper, we give some sharper refinements and generalizations of inequalities related to Shafer-Fink’s inequality for the inverse sine function stated in Theorems 1, 2, and 3 of Bercu (Math. Probl. Eng. 2017: Article ID 9237932, 2017).

【 授权许可】

CC BY