Larson's TRIGONOMETRY: A RIGHT TRIANGLE APPROACH incorporates realworld applications, ongoing review, and innovative technology. How Do You See It? exercises give you practice applying the concepts, and new Summarize features and Checkpoint problems reinforce understanding of the skill sets to help you better prepare for tests. Free access to homework support websites CalcChat.com, CalcView.com and LarsonPrecalculus.com are there when you need them. If you are struggling with previously learned math skills, work on the Review & Refresh exercises and watch the Skills Review videos.
1. RIGHT TRIANGLE TRIGONOMETRY.
Angles, Degree Measure, and Special Triangles. Similar Triangles. Trigonometric Functions: Right Triangle Ratios. Solving Right Triangles. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics. P.S. Problem Solving.
2. TRIGONOMETRIC FUNCTIONS.
Trigonometric Functions of Any Angle. Radian Measure. The Unit Circle and Trigonometric Functions. Basic Trigonometric Identities. Chapter Summary. Review Exercises. Chapter Test. Cumulative Test for Chapters 12. Proofs in Mathematics. P.S. Problem Solving.
3. GRAPHS OF TRIGONOMETRIC FUNCTIONS.
Graphs of Sine and Cosine Functions. Transformations of the Graphs of Sine and Cosine Functions. Graphs of Other Trigonometric Functions. Inverse Trigonometric Functions. Solving Trigonometric Equations Algebraically and Graphically. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics. P.S. Problem Solving.
4. ANALYTIC TRIGONOMETRY.
Using Fundamental Identities. Verifying Trigonometric Identities. Sum and Difference Formulas. MultipleAngle Formulas. ProducttoSum and SumtoProduct Formulas. Solving Trigonometric Equations Using Identities and Formulas. Chapter Summary. Review Exercises. Chapter Test. Cumulative Test for Chapters 34. Proofs in Mathematics. P.S. Problem Solving.
5. ADDITIONAL TOPICS IN TRIGONOMETRY.
Law of Sines. Law of Cosines. Vectors in the Plane. Vectors and Dot Products. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics. P.S. Problem Solving.
6. COMPLEX NUMBERS, PARAMETRIC EQUATIONS, AND POLAR EQUATIONS.
Complex Numbers. Trigonometric Form of a Complex Number. DeMoivre's Theorem. Parametric Equations. Polar Coordinates. Graphs of Polar Equations. Chapter Summary. Review Exercises. Chapter Test. Cumulative Test for Chapters 56. Proofs in Mathematics. P.S. Problem Solving.
APPENDIX A: ALGEBRA REVIEW.
Review of Real Numbers and Their Properties. Solving Equations. The Cartesian Plane and Graphs of Equations. Linear Equations in Two Variables. Functions. Analyzing Graphs of Functions. A Library of Parent Functions. Transformations of Functions. Combinations of Functions: Composite Functions. Inverse Functions.
APPENDIX B: CONCEPTS IN STATISTICS (ONLINE)
Representing Data. Analyzing Data. Modeling Data.

Ron Larson
Dr. Ron Larson is a professor of mathematics at the Pennsylvania State University, where he has taught since 1970. He is considered the pioneer of using multimedia to enhance the learning of mathematics, having authored more than 30 software titles since 1990. Dr. Larson has also written numerous acclaimed textbooks, including the bestselling Calculus Series published by Cengage. He is the recipient of the 2017 William Holmes McGuffey Longevity Award for PRECALCULUS, the 2018 Text and Academic Authors Association TEXTY Award for CALCULUS: EARLY TRANSCENDENTAL FUNCTIONS and the 2017 William Holmes McGuffey Longevity Award for CALCULUS. He also received the 1996 Text and Academic Authors Association TEXTY Award for INTERACTIVE CALCULUS  a complete text on CDROM that was the first mainstream college textbook to be offered on the internet.

Review & Refresh exercises–cumulative review exercises from current or prerequisite courses within each section exercise set–prepare students for the next section and provide a general skill review throughout the text.

Skills Refresher videos provide timely support by covering previously learned skills that students need to better understand a concept, example or definition.

Exploring the Concepts sections, Vocabulary and Concept Checks build student confidence and develop conceptual understanding.

Summary and Study Strategies help students succeed in the course by offering explanations and examples of both the key objectives and essential study skills for each chapter.

WebAssign provides instructors with the tools needed to build students’ confidence and elevate their performance. WebAssign offers builtin flexibility and control for instructors with high quality content that students can afford.

Textspecific tutorial videos at Larson’s CalcView.com provide instruction with steppedout solutions for selected exercises.

Learning support at Larson’s CalcChat.com provides students with free online tutoring and solutions to all oddnumbered problems.

How Do You See It? exercises in every section present reallife problems that students solve by visual inspection using the concepts in the lesson.

SideBySide Examples help students see not only that a problem can be solved in more than one way but also how different methodsalgebraic, graphical, and numericalyield the same result. The sidebyside format also addresses many different learning styles.

Algebra of Calculus examples and exercises throughout the text emphasize various algebraic techniques used in calculus.

Study strategies are found after the chapter summary. These essential study skills and reminders of helpful program features are presented to the student in every chapter.

ENHANCED WEBASSIGN: TRIGONOMETRY, Eleventh Edition, is fully supported by Enhanced WebAssign (EWA), the powerful online homework and course management system that engages students in learning the math. EWA includes new endofchapter exercises, animated simulations, and prebuilt assignments vetted by trusted subject matter experts along with robust course, section, assignment, and question settings and online testing to help instructors foster a deeper understanding of course concepts.

The Student Companion Website LarsonPrecalculus.com features chapter projects, data tables, assessments, study tools, skills refresher videos, and more to support students outside the text.

CalcChat.com, an independent website, provides students with free, uptotheminute homework support, including solutions to all oddnumbered problems in the text.

Algebra Helps features direct students to sections of the textbook where they can review algebra skills needed to master the current topic.

Original Checkpoint Problems encourage immediate practice and check students' understanding of the concepts in the paired example.
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