Acknowledged author Michael Sullivan III wrote Trigonometry: A Right Triangle Approach (5th Edition) comprising 752 pages back in 2008. Textbook and etextbook are published under ISBN 0136028969 and 9780136028963. Since then Trigonometry: A Right Triangle Approach (5th Edition) textbook was available to sell back to BooksRun online for the top buyback price of $0.77 or rent at the marketplace.
These authors understand what it takes to be successful in mathematics, the skills that students bring to this course, and the way that technology can be used to enhance learning without sacrificing math skills. As a result, they have created a textbook with an overall learning system involving preparation, practice, and review to help students get the most out of the time they put into studying. In sum, Sullivan and Sullivan's Trigonometry: Enhanced with Graphing Utilities gives students a model for success in mathematics.