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Addition formula for cosine
Author:
Malin Christersson
Topic:
Addition
,
Cosine
,
Trigonometry
,
Unit Circle
Change the angles to see the cases in all four quadrants.
GeoGebra
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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