Angle Sum Formulas for Sine and Cosine

Proof of the angle sum formulas in a visual way. Step by step construction showing the proof without words.

 

Dr. Doug Davis, 3D

 
Type de ressources
Activité
Balises
angle  cosine  formulas  fórmulas  sine  sum  trigonometry 
Tranche d'âges
14 – 19+
Langue
English
 
 
 
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