Sine and Cosine Values on the Unit Circle (Angles in Degrees)
You'll memorize the sine and cosine values associated with reference angles of 0, 30, 45, 60, and 90 degrees.
Sine and Cosine Values on the Unit Circle (Angles in Radians)
You'll memorize the sine and cosine of the special angles of a unit circle written in radians.
Finding Standard-Position Angles
You'll find the standard-position angle for a given reference angle.