The unit square for trigonometry

Auteur:Daniel Mentrard

Onderwerp:Vierkant, Driehoeksmeting

It's strange but I prefer the unit square to memorize the trigonometric ratios rather than the unit circle http://dmentrard.free.fr/GEOGEBRA/Maths/Export6/UnitsquareMD.html

It's strange but I prefer the unit square to memorize the trigonometric ratios rather than the unit circle http://dmentrard.free.fr/GEOGEBRA/Maths/Export6/UnitsquareMD.html

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