Download or read book Precalculus with Unit-circle Trigonometry written by David Cohen and published by Brooks Cole. This book was released on 1994 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: This full-color text introduces trigonometry through the unit-circle approach. It emphasizes graphing to explain concepts and incorporates graphing calculators in optional sections where appropriate. Over 5000 exercises provide a thorough preparation for calculus. The exercises are divided into A, B, and C sets to enable instructors to customize the level of their course.