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In mathematics education, precalculus is a course, or a set of courses, that includes algebra and trigonometry at a level that is designed to prepare students for the study of calculus, thus the name …

Study precalculus online free by downloading OpenStax's Precalculus 2e textbook and using our accompanying online resources including a precalculus study guide.

This site contains high school Precalculus lessons on video from four experienced high school math teachers. There are also packets, practice problems, and answers provided on the site.

Learn Precalculus skills for free! Choose from hundreds of topics including functions, complex numbers, vectors, matrices, and more. Start learning now!

Master precalculus with clear explanations, step-by-step solutions, and free guided notes at Understand the Math. This page covers functions, polynomial and rational expressions, exponential and …

It is a text which students can learn from in its simplicity, clarity, and logic, and conversational tone, while maintaining mathematical correctness and completeness. An important element of consistency is …