An identity related to Jordan's inequality
oleh: Jian-Lin Li
| Format: | Article |
|---|---|
| Diterbitkan: | Hindawi Limited 2006-01-01 |
Deskripsi
The main purpose of this note is to establish an identity which states that the function sinx/x is a power series of (π2−4x2) with positive coefficients for all x≠0. This enable us to obtain a much stronger Jordan's inequality than that obtained before.