In Calculus 2, you will need to be comfortable with radian angle measure and you will need to be able to find trigonometric functions of special angles - especially the quadrantal angles.

Finding EXACT values of trig functions of special angles: I recommend you choose EITHER the special triangle approach OR the unit circle approach. If you know you prefer using the unit circle and just need a refresher, skip to the bottom of this page!

Special angles - converting degrees to radians and locating them on the unit circle

Special triangles... where they come from

Using special triangles

Finding exact values of trig functions of special angles using special triangles and reference angles

Filling in the Unit Circle

Using the Unit Circle

BLANK unit circle for you to practice with! If you fill it in and want it laminated, stop by my office. (Tracie Catania: PS 209C)

Need help remembering your trigonometry facts?

For access to ALL of my Precalculus videos, go to this Math Learning Center Canvas module.