Journal of Mathematical Inequalities · Volume 7, Issue 4 Simple proofs of the Cusa-Huygens-type and Becker-Stark-type inequalities 07-52 Pages 563-567 DOI 10.7153/jmi-07-52 Downloads Short PDF Full PDF PNG Authors Zheng Jie Sun Ling Zhu Keywords circular functions the Cusa-Huygens-type inequalities the Becker-Stark-type inequalities new simple proofs of two conjecture by Chen and Chueng Subject classes 26D20