JIPAM

A Method For Establishing Certain Trigonometric Inequalities  
 
  Authors: Mowaffaq Hajja,  
  Keywords: Geometric inequalities, Equifacial tetrahedra, Solid angle.  
  Date Received: 07/11/06  
  Date Accepted: 14/02/07  
  Subject Codes:

51M16, 52B10.

 
  Editors: Peter S. Bullen,  
 
  Abstract:

In this note, we describe a method for establishing trigonometric inequalities that involve symmetric functions in the cosines of the angles of a triangle. The method is based on finding a complete set of relations that define the cosines of such angles.;



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