Refinements of a Two–sided Inequality for Trigonometric Functions

نویسنده

  • ZHEN-HANG YANG
چکیده

In this paper, we prove that for x ∈ (0,π/2) (cos p1x) 1/(3p1) < sinx x < (cos p0x) 1/(3p0) < · · · < e−x/6 < 2+ cos x

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تاریخ انتشار 2013