In this comprehensive 4th edition, J.S. Ratti presents a clear and accessible introduction to precalculus concepts with a focus on unit circle approach. Key features include detailed explanations of functions, trigonometry, and their applications in real-world scenarios.

Key benefits: Enhanced understanding through numerous examples and exercises, improved problem-solving skills, and preparation for advanced mathematics courses.

J.S. Ratti, 4th Edition, English, Pearson Education, Dimensions: 7.8 x 1.2 x 9.6 inches, ISBN-10: 032157506X, ISBN-13: 978-0321575067, Publication Date: August 4, 2008, Print Length: 1112 pages