Boundless Algebra

Trigonometric Functions and the Unit Circle

Concept Version 4

Created by Boundless

Sine and Cosine as Functions

Graph of the sine function

Graph of the sine function

Graph of points with $x$ coordinates being angles in radians, and $y$ coordinates being the function $\sin x$.

Source

Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

"Algebra and Trigonometry."

http://cnx.org/contents/13ac107a-f15f-49d2-97e8-60ab2e3b519c@5.241 OpenStax CC BY 4.0.