unit circle videos

Some of you might want the lecture to the intro to unit circle again.  I found some videos that contain the same info I gave for section 9.3.  Copy and paste the links into your browser to see the videos and ask questions in class while you have the chance.


unit circle and new definitions of trig functions - Sal Pt.
https://www.youtube.com/watch?v=1m9p9iubMLU

Same thing- Sal Pt. II
https://www.youtube.com/watch?v=ZffZvSH285c

Info on radians and radian conversion from degrees (not the best artist but good info)
https://www.youtube.com/watch?v=JmLN3QxshlE