Komplexe Zahlen Mathematik Leistungskurs  13 Hr. Fischer

 

 

Geometrische Veranschaulichung der Additionstheoreme

 

 

cos(a +b ) = cos(a ) cos(b ) – sin(a ) sin(b )

sin(a +b ) = sin(a ) cos(b ) + cos(a ) sin(b )

 

 

 

 

 

 

 

cos(a -b ) = cos(a ) cos(b ) + sin(a ) sin(b )

sin(a -b ) = sin(a ) cos(b ) - cos(a ) sin(b )