Dergiler / Hacettepe Journal of Mathematics and Statistics / 2011 / Cilt: 40 - Sayı: 1

A generalization of Jordan's inequality and an application

Sayfa
53–61
Yayın Tarihi
2022-10-18
DOI
—
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

As an application, Yang’s inequality is refined.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:In this article, a new generalization of Jordan’s inequality $sumlimits_{k=1}^n mu_k (theta^t -x^t)^k leq frac{sin x} {x} - frac{sin theta} {theta} leq sumlimits_{k=1}^n omega_k (theta^t -x^t)^k$ for $t geq 2, n in Bbb{N}$ and $theta in (0, pi ]$ is established, where the coefficients $mu_k$ and $omega_k$ are defined by recursion formulas, and are the best possible.
📊
Temel Bulgular & Veri:In this article, a new generalization of Jordan’s inequality $sumlimits_{k=1}^n mu_k (theta^t -x^t)^k leq frac{sin x} {x} - frac{sin theta} {theta} leq sumlimits_{k=1}^n omega_k (theta^t -x^t)^k$ for $t geq 2, n in Bbb{N}$ and $theta in (0, pi ]$ is established, where the coefficients $mu_k$ and $omega_k$ are defined by recursion formulas, and are the best possible.
💡
Sonuç & Katkı:As an application, Yang’s inequality is refined.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

In this article, a new generalization of Jordan’s inequality $sumlimits_{k=1}^n mu_k (theta^t -x^t)^k leq frac{sin x} {x} - frac{sin theta} {theta} leq sumlimits_{k=1}^n omega_k (theta^t -x^t)^k$ for $t geq 2, n in Bbb{N}$ and $theta in (0, pi ]$ is established, where the coefficients $mu_k$ and $omega_k$ are defined by recursion formulas, and are the best possible. As an application, Yang’s inequality is refined.

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Bu Makaleye Atıf Yap

HUO, Z. H., NIU, D. W., CAO, J., QI, F. (2022). A generalization of Jordan's inequality and an application. Hacettepe Journal of Mathematics and Statistics, Cilt: 40 - Sayı: 1, 53–61. https://ajindex.com/articles/530546

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Kaynakça (16)

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