Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1710765 | Applied Mathematics Letters | 2006 | 4 Pages |
Abstract
In this work, the following inequality: sinxx≤2π+π−2π3(π2−4x2),x∈(0,π/2] is established. An application of this inequality gives an improvement of the Yang Le inequality [C.J. Zhao, Generalization and strengthening of the Yang Le inequality, Math. Practice Theory 30 (4) (2000) 493–497 (in Chinese)]:(n−1)∑k=1ncos2λAk−2cosλπ∑1≤i
Related Topics
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Authors
Ling Zhu,