An extended Jordan's inequality in exponential type

作者：Zhu, Ling^*

来源：Applied Mathematics Letters, 2011, 24(11): 1870-1873.

DOI：10.1016/j.aml.2011.05.009

• Lower and upper bounds
• Double exponential type Jordan's inequality

In this paper, we establish the following double exponential type Jordan's inequality
(sinr/r)(p) + alpha(r(2) - x(2)) <= (sin/x)(p) <= (sin/r)(p) + beta(r(2) - x(2))
for x is an element of (0, r] 0, < <= pi/2, and p > 0.

• 出版日期2011-11
• 单位浙江工商大学