Get ready to master the fundamentals of trigonometry! This is a comprehensive reference guide that explains and clarifies the principles of trigonometry in a simple, easy-to-follow style and format. Beginning with the most basic fundamental topics, including a review of basic geometry, and progressing through to the more advanced topics, the book helps clarify trigonometry using step-by-step procedures and solutions, along with examples and applications. Perfect for both students who need some extra help or rusty professionals who want to brush up.