The Tangent Graph and the Unit Circle

How can you use the unit circle to think about the tangent ratio? Sure, you can think about it as the quotient of the y-coordinate and x-coordinate. But is there an easier way? Watch this video to see the tangent ratio from a slightly different geometric perspective. Then watch as I use the unit circle to generate the graph of the tangent function.

Видео The Tangent Graph and the Unit Circle канала Fred Kong