On Jordan's and Kober's inequality

  • Barkat Ali Bhayo Koulutuskeskus Salpaus (Salpaus Further Education), Lahti
  • József Sándor Babeş-Bolyai University, Department of Mathematics, Str. Kogalniceanu nr. 1 400084 Cluj-Napoca
Keywords: Cusa–Huygens's inequality, Jordan's inequality, Kober's inequality, trigonometric functions

Abstract

We refine some classical inequalities for trigonometric functions, such as Jordan's inequality, Cusa–Huygens's inequality, and Kober's inequality.
Published
2016-12-02
Section
Articles