HIGHLIGHTS
- who: JIAN-LIN LI from the (UNIVERSITY) have published the research: AN IDENTITY RELATED TO JORDAN’S INEQUALITY, in the Journal: (JOURNAL) of 28/07/2006
- what: The aim of this note is to establish an identity which states that the function sinx/x is a power series of_(π 2 - 4x2 ) with positive coefficients for all x = 0.
SUMMARY
The well-known Jordan's inequality states that 2 sinx ≤ and amp;lt; 1, π x x ∈ 0, with equality holds if and only if x=π/2 (see ). The inequality (1.3) is . . .
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