Common Angles on the Unit Circle
And their cosine/sine values
3.31 Expand the drawing you created in Problem 3.23 to include the following elements:
I. A unit circle passing through all four quadrants of the coordinate plane
II. The terminal sides of , π, , and 2π in standard position
II. The coordinates of the points at which the angles intersect the unit circle
Although a unit circle is simply a circle with a radius of 1, the term “unit circle” often refers to the drawing described in this problem. This diagram, duplicated in Appendix ...