Trigonometry Review

In this video we review some trigonometry that you may have done a long time ago, but possibly through a new lens — focusing on how sine, cosine, and the tangent functions are closely related to circles

0:00 Intro
0:21 sine, cosine, tangent on the unit circle
6:54 Inverse sine and cosine
11:52 Inverse tan
14:06 cos^2 + sin^2 = 1
15:07 SOHCAHTOA