# Trigonometry

- By: Katherine Yoshiwara
- Publisher: Los Angeles Pierce College
- Source: [LibreTexts](https://math.libretexts.org/Bookshelves/Precalculus/Trigonometry_(Yoshiwara))
- Licence: [GNU Free Documentation License](https://www.gnu.org/licenses/fdl-1.3.html)
- Read at LibreTexts: https://math.libretexts.org/Bookshelves/Precalculus/Trigonometry_(Yoshiwara)
- PDF: https://downloads.libretexts.org/api/v1/download/math-112388/pdf

This text covers the content of a standard trigonometry course, beginning with a review of facts from geometry.