Section 5.1 The Unit Circle
+ Kazmierczak Videos
The Unit Circle and The Reference Number
Terminal Points of the Unit Circle
+ Mosely Videos
Identify a unit circle and its relationship to real numbers
+ More Resources
Explore It: Sine and the Unit Circle
Animation: Terminal Point Determined by t > 0
Animation: Terminal Point Determined by t < 0
Animation: Terminal Points for Special Values
Animation: Finding Terminal Points - Part I
Animation: Finding Terminal Points - Part II
Animation: Finding Terminal Points - Part III
Animation: Finding Reference Numbers - Part I
Animation: Finding Reference Numbers - Part II