Trigonometric functions and their graphs; inverse trigonometric functions and their graphs; trigonometric identities and equations; solutions of triangles; complex numbers; vectors; polar coordinates; applications.
Algebra and Trigonometry provides a comprehensive and multi-layered exploration of algebraic principles. The text is suitable for a typical introductory Algebra & Trigonometry course, and was developed to be used flexibly.
A plain-English guide to the basics of trig Trigonometry deals with the relationship between the sides and angles of triangles... mostly right triangles. In practical use, trigonometry is a friend to astronomers who use triangulation to measure the distance between stars. Tracks to a typical Trigonometry course at the high school or college level.