- Hacettepe Journal of Mathematics and Statistics
- Volume:45 Issue:1
- On a conjecture of double inequality for the tangent function
On a conjecture of double inequality for the tangent function
Authors : Mansour MAHMOUD
Pages : 43-48
View : 53 | Download : 10
Publication Date : 2016-02-01
Article Type : Research Paper
Abstract :In this paper, we prove the conjecture posed by J.-L. Zhao, Q.-M. Luo, B.-N. Guo and F. Qi insert ignore into journalissuearticles values(Remarks on inequalities for the tangent function, Hacettepe J. Math. Stat., 41, no. 4, 499-506, 2012); about a sharp double inequality of the tangent function, which is a generalization of the Becker-Stark inequality. Also, the new double inequality is compared with the double inequality presented in [3]Keywords : Tangent function, LHôpitals rule, inequality, best constants, Concavity
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