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This market-leading text continues to provide students and instructors with sound, consistently structured explanations of the mathematical concepts. Designed for a one-term course that prepares students to study calculus, the new Seventh Edition retains the features that have made Trigonometry a complete solution for both students and instructors: interesting applications, cutting-edge design, and innovative technology combined with an abundance of carefully written exercises.

Ron Larson, The Pennsylvania State University, The Behrend College

Dr. Ron Larson is a professor of mathematics at The Pennsylvania State University, where he has taught since 1970. He received his Ph.D. in mathematics from the University of Colorado and is considered the pioneer of using multimedia to enhance the learning of mathematics, having authored over 30 software titles since 1990. Dr. Larson conducts numerous seminars and in-service workshops for math educators around the country about using computer technology as an instructional tool and motivational aid. He is the recipient of the 2014 William Holmes McGuffey Longevity Award for CALCULUS: EARLY TRANSCENDENTAL FUNCTIONS, the 2013 Text and Academic Authors Association Award for CALCULUS, the 2012 William Holmes McGuffey Longevity Award for CALCULUS: AN APPLIED APPROACH, and the 1996 Text and Academic Authors Association TEXTY Award for INTERACTIVE CALCULUS (a complete text on CD-ROM that was the first mainstream college textbook to be offered on the Internet). Dr. Larson authors numerous textbooks including the bestselling Calculus series published by Cengage.

Robert P. Hostetler, The Pennsylvania State University, The Behrend College

The Pennsylvania State University, The Behrend College Bio: Robert P. Hostetler received his Ph.D. in mathematics from The Pennsylvania State University in 1970. He has taught at Penn State for many years and has authored several calculus, precalculus, and intermediate algebra textbooks. His teaching specialties include remedial algebra, calculus, and math education, and his research interests include mathematics education and textbooks.
  • Side-by-side Example Solutions for select examples include multiple problem solving approaches--such as algebraic, graphical, and numerical--to appeal to a variety of teaching and learning styles.
  • Checkpoints after each Example/Solution refer students to similar drills in the Section Exercises, allowing students to practice and reinforce the concepts they just learned. Answers to Checkpoints are included at the back of the book.
  • Vocabulary Checks open every set of Section Exercises. This review of mathematical terms, formulas, and theorems provides regular assessment and reinforcement of students' understanding of algebraic language and concepts.
  • Exercise Sets have been carefully analyzed and revised to improve the categorization of problems from basic skill-building to challenging; improve the pairing of similar odd- and even-numbered exercises; update all real data; and add real-life and real-data applications.
  • Make a Decision applications--presented throughout the text at the end of selected exercise sets--are based on large sets of real data. These extended modeling applications give students the opportunity to use all the mathematical concepts and techniques they've learned and apply them to large sets of real date--analyzing it, graphing it, and making conjectures about its behavior. These applications are featured in Eduspace and the Online Learning Center in an interactive format.
  • Eduspace, powered by Blackboard, Houghton Mifflin's online learning environment, brings your students quality online homework, tutorials, multimedia, and testing that correspond to the Trigonometry text. This content is paired with the recognized course management tools of Blackboard.
  • The addition of Precalculus with Limits and Precalculus: A Concise Course to the Precalculus series enhances the scope of the series, making it even more flexible and adaptable to a variety of learning and teaching styles.
Note: Each chapter concludes with a Chapter Summary, Review Exercises, a Chapter Test, Proofs in Mathematics, and P.S. Problem Solving.
P. Prerequisites
P.1 Review of Real Numbers and Their Properties
P.2 Solving Equations
P.3 The Cartesian Plane and Graphs of Equations
P.4 Linear Equations in Two Variables
P.5 Functions
P.6 Analyzing Graphs of Functions
P.7 A Library of Functions
P.8 Transformations of Functions
P.9 Combinations of Functions: Composite Functions
P.10 Inverse Functions
1. Trigonometry
1.1 Radian and Degree Measure
1.2 Trigonometric Functions: The Unit Circle
1.3 Right Triangle Trigonometry
1.4 Trigonometric Functions of Any Angle
1.5 Graphs of Sine and Cosine Functions
1.6 Graphs of Other Trigonometric Functions
1.7 Inverse Trigonometric Functions
1.8 Applications and Models
2. Analytic Trigonometry
2.1 Using Fundamental Identities
2.2 Verifying Trigonometric Identities
2.3 Solving Trigonometric Equations
2.4 Sum and Difference Formulas
2.5 Multiple-Angle and Product-to-Sum Formulas
3. Additional Topics in Trigonometry
3.1 Law of Sines
3.2 Law of Cosines
3.3 Vectors in the Plane
3.4 Vectors and Dot Products
Cumulative Test: Chapters 1-3
4. Complex Numbers
4.1 Complex Numbers
4.2 Complex Solutions of Equations
4.3 Trigonometric Form of a Complex Number
4.4 DeMoivre's Theorem
5. Exponential and Logarithmic Functions
5.1 Exponential Functions and Their Graphs
5.2 Logarithmic Functions and Their Graphs
5.3 Properties of Logarithms
5.4 Exponential and Logarithmic Equations
5.5 Exponential and Logarithmic Models
6. Topics in Analytic Geometry
6.1 Lines
6.2 Introduction to Conics: Parabolas
6.3 Ellipses
6.4 Hyperbolas
6.5 Rotation of Conics
6.6 Parametric Equations
6.7 Polar Coordinates
6.8 Graphs of Polar Equations
6.9 Polar Equations of Conics
Cumulative Test: Chapters 4-6
Appendix A: Concepts in Statistics (web)
A.1 Representing Data
A.2 Measures of Central Tendency and Dispersion
A.3 Least Squares Regression

Textbook Only Options

Traditional eBook and Print Options

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  • ISBN-10: 061864332X
  • ISBN-13: 9780618643325
  • Bookstore Wholesale Price $225.00
  • RETAIL $299.95

Cengage provides a range of supplements that are updated in coordination with the main title selection. For more information about these supplements, contact your Learning Consultant.


Complete Solutions Manual with Instructor's Website

ISBN: 9781337278539
This time-saving manual contains solutions to all exercises from the text, including Chapter Review Exercises and Chapter Tests.

PowerPoint® with Image Library Slides on Instructor's Website

ISBN: 9781337278522
Microsoft® PowerPoint® slides and image library for the entire book, posted on the Instructor Companion Website, let you incorporate images from the book right into your lectures.

Cengage Learning Testing, powered by Cognero® Instant Access

ISBN: 9781337278515
Cengage Learning Testing Powered by Cognero® is a flexible, online system that allows you to: import, edit, and manipulate content from the text's test bank or elsewhere, including your own favorite test questions; create multiple test versions in an instant; and deliver tests from your LMS, your classroom, or wherever you want. This is available online via

Student Solutions Manual

ISBN: 9781337278485
This guide offers step-by-step solutions for all odd-numbered text exercises, Chapter and Cumulative Tests, and Practice Tests with solutions, giving students a way to check their answers and ensure that they took the correct steps to arrive at an answer.

Annotated Instructor's Edition

ISBN: 9781337278478


Student Solutions Manual

ISBN: 9781337278485
This guide offers step-by-step solutions for all odd-numbered text exercises, Chapter and Cumulative Tests, and Practice Tests with solutions, giving you a way to check your answers.