25 citations · 90 across the 23 of their papers we have counts for
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math.CA2013
Some sharp Wilker type inequalities and their applications
Zhen-Hang Yang
In this paper, we prove that for fixed , the Wilker type inequality {equation*} \frac{2}{k+2}(\frac{\sin x}{x}) ^{kp}+\frac{k}{k+2}(\frac{% \tan x}{x})^{p}>1 {equation*}%…
math.CA2013★ 1 cited
Some new inequalities for trigonometric functions and corresponding ones for means
Zhen-Hang Yang
In this paper, the versions of trigonometric functions of certain known inequalities for hyperbolic ones are proved, and then corresponding inequalities for means are presented.
math.CA2013★ 1 cited
Unification and refinements of Jordan, Adamović-Mitrinovićand and Cusa's inequalities
Zhen-Hang Yang
In this paper, we find some new sharp bounds for , which unify and refine Jordan, Adamović-Mitrinovićand and Cusa's inequalities. As applications of main re…