A general refinement of Jordan-type ineq
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Ling Zhu
📂
Article
📅
2008
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Elsevier Science
🌐
English
⚖ 227 KB
In this work, a general form of Jordan's inequality: , and N ≥ 0 is a natural number. The applications of the above result give the general improvement of the Yang Le inequality and a new infinite series (sin x)/x = ∞ n=0 a n (π 2 -4x 2 ) n for 0 < |x| ≤ π/2.