Precalculus

Precalculus: A Right Triangle Approach, 5th Edition, is a mathematics textbook published by Pearson designed to provide an accessible and comprehensive foundation for calculus. The volume focuses on preparing students for subsequent mathematics courses through structured algebraic and trigonometric instruction.

Instruction balances core algebraic principles with systematic trigonometric study. Subject coverage examines equations, inequalities, graphs, and general functions, alongside polynomial, rational, exponential, and logarithmic functions.

The presentation emphasizes a right triangle approach to trigonometry to help students understand trigonometric functions and their practical applications. Throughout the text, real-world data, applications, and mathematical modeling are integrated to support student preparation for advanced coursework.