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cos²x +sin²x =1 (Pythagora in the unit circle)
Forfatter
Daniel Mentrard
Emne:
Cirkel
,
Cosinus
,
Sinus
,
Trigonometri
,
Enhedscirkel
http://dmentrard.free.fr/GEOGEBRA/Maths/cossincarreMD.html
http://dmentrard.free.fr/GEOGEBRA/Maths/cossincarreMD.html
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