TY  - BOOK
AU  - Yoshiwara,Katherine
ED  - Open Textbook Library
TI  - Trigonometry
T2  - Open textbook library
AV  - QA1 
CY  - Minneapolis, MN
PB  - Open Textbook Library
KW  - Mathematics
KW  - Textbooks
KW  - Geometry and Trigonometry
N1  - 1. Triangles and Circles -- 2. Trigonometric Ratios -- 3. Laws of Sines and Cosines -- 4. Trigonometric Functions -- 5. Equations and Identities -- 6. Radians -- 7. Circular Functions -- 8. More Functions and Identities -- 9. Vectors -- 10. Polar Coordinates and Complex Numbers
N2  - This text covers the content of a standard trigonometry course, beginning with a review of facts from geometry
UR  - https://open.umn.edu/opentextbooks/textbooks/1097
ER  -