Some new inequalities of the Huygens type

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Abstract

In this note, we show some new inequalities of the Huygens type for circular functions, hyperbolic functions, and the reciprocals of circular and hyperbolic functions by using a monotone form of l’Hospital’s rule.

Keywords

Huygens type inequalities
Circular functions
Hyperbolic functions
The reciprocals of circular functions
The reciprocals of hyperbolic functions

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