For courses in Precalculus
Precalculus: Graphical, Numerical, Algebraic—bythe nationally recognised author team of Demana, Waits, Foley, Kennedy, and Bock—is the leading choice for graphing-intense courses. Now in its 9th Edition, this bestseller offers extremely accessible writing and exercises, a balanced approach to problem solving, the most appropriate use of technology, and an easier and more consistent transition from Precalculus to Calculus. A principal feature of this text is the balance among the algebraic, numerical, graphical, and verbal methods of representing problems: the rule of four. This approach reinforces the idea that to understand a problem fully, students need to understand it algebraically as well as graphically and numerically.
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![“Precalculus: Graphical, Numerical, Algebraic, SE PDF eBook, Global Edition (English Edition)”，作者：[Franklin Demana, Bert K. Waits, Gregory D. Foley, Daniel Kennedy, Dave Bock, David E. Bock]](https://images-cn.ssl-images-amazon.cn/images/I/51lzU9UJkWL._SX260_.jpg)
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