RiDo Circles. Sin Cos circles.

[rishidoshi]

The values of sin and cos are plotted in an (r,θ) format. The resultant plots are two perfect circles. This would be a very easy way for students and professionals to find out the common values of sin and cos. It also helps the general understanding about how the trigonometric values vary for all angles. Concept by RiDo in the year 2000. Download the image from www.facebook.com/RiDoCircles ' album or from HERE

As we have many students in this forum it might help. Pls spread the word!

[video=youtube_share;gbfTnY6OdOA]http://youtu.be/gbfTnY6OdOA[/video]

 

[Quadrescence]

Or one can properly learn the definition of sine and cosine from the unit circle, and not have such a huge issue.