Unit Circle and Graphs of Sine/Cosine

The Sine Graph. Move the green theta slider at the top and see how the sine graph is created and related to the unit circle.

What value is the sine graph tracing as the angle moves around the unit circle?

At what values does the sine graph equal zero?

At what value does the sine graph equal one?

At what value does the sine graph equal negative one?

What value is the cosine graphing tracing as the angle moves around the unit circle?

At what values does the cosine graph equal zero?

At what value does the cosine graph equal one?

At what value does the cosine graph equal negative one?

Go to page 44 in your FST book and answer the questions.