AIMS Mathematics, 2020, 5(1): 376-384. doi: 10.3934/math.2020025

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New inequalities of Wilker’s type for hyperbolic functions

Department of Mathematics, Zhejiang Gongshang University, Hangzhou, Zhejiang, China

Using power series expansions of functions and the monotonicity criterion for the quotient of power series, we establish some new Wilker-type inequalities for hyperbolic functions.
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References

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6. Zh. H. Yang, Y. M. Chu and M. K. Wang, Monotonicity criterion for the quotient of power series with applications, J. Math. Anal. Appl., 428 (2015), 587-604.    

© 2020 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

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