759 B
759 B
Introduction
The unit circle has a center a (0, 0)
, and a radius of 1
with no defined unit.
Sine and cosine can be used to find the coordinates of specific points on the unit circle.
Sine likes y
, and cosine likes x
.
When sine is positive, the y
value is positive. When x
is positive, the cosine is positive.
cos\
# Definitions
| Term | Description |
| ---------------- | ----------------------------------------------------------------------------- |
| $\theta$ (theta) | Theta refers to the angle measure in a unit circle. |
| $s$ | $s$ is used to the length of the arc created by angle $\theta$ on the circle. |