COMPUTINGMATHSAPPROXIMATIONCALCULUSCOMBINATORICSDATA FITTINGDISCRETEGEOMETRYAREACOORDINATEPURESPHERICALTRIGONOMETRYFormulaeThe Trigonometry of the TriangleTrigonometrical FormulaeTrigonometrical RatiosVOLUMECornersPythgenNOTATIONSOPTIMIZATIONROOTFINDINGSPECIALSTATISTICSENGINEERINGFINANCEUNITSSTRINGSPHYSICS Maths › Geometry › Trigonometry › Formulae General trigonometric identities ContentsFormulaePage Comments FormulaeA list of important general trigonometric identities, (1) (2) (3) (4) (5) (6)Some more specific identities that relate to the following general diagram, (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20)If (21) (22)(23) (24)(25) (26) (27) (28)(29) (30) (31) (32) where R stands for the curcum-radius of the triangle ABC To avoid doubt (and for those new to maths): Last Modified: 30 Mar 08 @ 12:54 Page Rendered: 2022-03-14 15:42:57