Inequalities of Some Trigonometric Functions

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Chen, Chao-Ping and Qi, Feng (2003) Inequalities of Some Trigonometric Functions. RGMIA research report collection, 6 (3).


By using two identities and two inequalities relating to Bernoulli’s and Euler’s numbers and power series expansions of cotangent function, secant function, cosecant function and logarithms of functions involving sine function, cosine function and tangent function, six inequalities involving tangent function, cotangent function, sine function, secant function and cosecant function are established.

Item type Article
Subjects Historical > FOR Classification > 0102 Applied Mathematics
Historical > FOR Classification > 0103 Numerical and Computational Mathematics
Current > Collections > Research Group in Mathematical Inequalities and Applications (RGMIA)
Keywords inequality, power series expansion, tangent function, cotangent function, secant function, cosecant function, sine function, cosine function, Bernoulli’s number, Euler’s number
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