Sine and cosine functions trace by rolling unit circle

http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/CosinfuncmovMD.html
http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/CosinfuncmovMD.html
– Daniel Mentrard

Information: Sine and cosine functions trace by rolling unit circle