A simple proof of Oppenheim's double inequality relating to the cosine and sine functions
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Publication:4904287
DOI10.7153/JMI-06-63zbMath1257.26012arXiv0902.2511OpenAlexW3098420371MaRDI QIDQ4904287
Feng Qi, Bai-Ni Guo, Qiu-Ming Luo
Publication date: 28 January 2013
Published in: Journal of Mathematical Inequalities (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/0902.2511
Inequalities for trigonometric functions and polynomials (26D05) Exponential and trigonometric functions (33B10)
Related Items (6)
Sharpening and generalizations of Shafer's inequality for the arc sine function ⋮ Some notes on a method for proving inequalities by computer ⋮ On Jordan type inequalities for hyperbolic functions ⋮ A constructive method for approximating trigonometric functions and their integrals ⋮ Monotonicity results and inequalities for the inverse hyperbolic sine function ⋮ Sharpening and generalizations of Shafer's inequality for the arc tangent function
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