Sine and Cosine functions traced with rolling circles

http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/SincotwocirclesMD.html
[url=http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/SincotwocirclesMD.html]http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/SincotwocirclesMD.html[/url]
– Daniel Mentrard

Information: Sine and Cosine functions traced with rolling circles