Concept
Version 4
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Sine and Cosine as Functions
Periods of the sine and cosine functions
The sine and cosine functions are periodic, meaning that
a specific horizontal shift,
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.