Trigonometry, 12th edition
Choose the option that's right for you
Single
$9.99 / mo
4month minimum term for $39.96
 Access this eText title
 Up to 2 devices
 Discounted tutor access
Multi
$14.99 / mo
4month minimum term for $59.96
 Access over 1,500 titles
 Up to 2 devices
 Discounted tutor access
Learn more, spend less

Learn anytime, anywhere
Get the app to access your eText whenever you need it

Make it your own
Your notes. Your highlights. Your eText

Find it fast
Quickly navigate your eText with search

Stay organized
Access all your eTexts in one place

Easily continue access
Keep learning with autorenew
Overview
Trigonometry helps you develop the balance of conceptual understanding and analytical skills needed to succeed in mathematics.
Published by Pearson (July 1st 2020)  Copyright © 2021
ISBN13: 9780136881117
Subject: Precalculus, College Algebra & Trigonometry
Category: Trigonometry
Table of contents
Preface
Resources for Success
R. Algebra Review
R.1 Basic Concepts from Algebra
R.2 Real Number Operations and Properties
R.3 Exponents, Polynomials, and Factoring
R.4 Rational Expressions
R.5 Radical Expressions
R.6 Equations and Inequalities
R. 7 Rectangular Coordinates and Graphs
R.8 Functions
R.9 Graphing Techniques
1. Trigonometric Functions
11 Angles
12 Angle Relationships and Similar Triangles
13 Trigonometric Functions
14 Using the Definitions of the Trigonometric Functions
Test Prep
Review Exercises
Test
2. Acute Angles and Right Triangles
21 Trigonometric Functions of Acute Angles
22 Trigonometric Functions of NonAcute Angles
23 Approximations of Trigonometric Function Values
24 Solutions and Applications of Right Triangles
25 Further Applications of Right Triangles
Test Prep
Review Exercises
Test
3. Radian Measure and the Unit Circle
31 Radian Measure
32 Applications of Radian Measure
33 The Unit Circle and Circular Functions
34 Linear and Angular Speed
Test Prep
Review Exercises
Test
4. Graphs of the Circular Functions
41 Graphs of the Sine and Cosine Functions
42 Translations of the Graphs of Sine and Cosine Functions
43 Graphs of the Tangent and Cotangent Functions
44 Graphs of the Secant and Cosecant Functions
45 Harmonic Motion
Test Prep
Review Exercises
Test
5. Trigonometric Identities
51 Fundamental Identities
52 Verifying Trigonometric Identities
53 Sum and Difference Identities for Cosine
54 Sum and Difference Identities for Sine and Tangent
55 DoubleAngle Identities
56 HalfAngle Identities
Test Prep
Review Exercises
Test
6. Inverse Circular Functions and Trigonometric Equations
61 Inverse Circular Functions
62 Trigonometric Equations I
63 Trigonometric Equations II
64 Equations Involving Inverse Trigonometric Functions
Test Prep
Review Exercises
Test
7. Applications of Trigonometry and Vectors
71 Oblique Triangles and the Law of Sines
72 The Ambiguous Case of the Law of Sines
73 The Law of Cosines
74 Geometrically Defined Vectors and Applications
75 Algebraically Defined Vectors and the Dot Product
Test Prep
Review Exercises
Test
8. Complex Numbers, Polar Equations, and Parametric Equations
81 Complex Numbers
82 Trigonometric (Polar) Form of Complex Numbers
83 The Product and Quotient Theorems
84 De Moivre's Theorem
85 Polar Equations and Graphs
86 Parametric Equations, Graphs, and Applications
Test Prep
Review Exercises
Test
Answers to Selected Exercises
Photo Credits
Index
Your questions answered
Introducing Pearson+. Reimagined learning, designed for you. Choose from one eText or over 1,500 eTexts and study tools, all in one place, for one low monthly subscription. A new way to buy books that fits your budget. Make the most of your study time with offline access, enhanced search, notes and flashcards — to get organized, get the work done quicker and get results. Plus, with the app, put textbooks in your pocket and learn wherever. It's time to upgrade the textbook and simplify learning, so you can have time to live too.
Pearson eText is an easytouse digital textbook available from Pearson+. Make it your own by adding notes and highlights. Download the Pearson+ mobile app to learn on the go, even offline. Listen on the go with our new audiobook feature, available for most titles.
When you choose a plan, you're signing up for a 4month 'term'. We will charge your payment method each month until your 4month term has ended. You can turn on autorenew in My account at any time to continue your subscription before your 4month term has ended.
When you purchase a Pearson+ subscription, it will last 4 months. Before your initial 4month term ends, you can extend your subscription by turning autorenew on in My account. If you turn autorenew on, we’ll automatically renew your subscription and charge you every month until you turn off autorenew.
To avoid the next payment charge, make sure you turn auto renewal off 1 day before the auto renewal date. You can subscribe again after autorenew has been turned off by purchasing another Pearson+ subscription. We use your credit card to renew your subscription automatically. To make sure your learning is uninterrupted, please check your card details before your first monthly payment.
With a Multi Pearson+ subscription plan, you can download up to 5 titles on the Pearson+ app from My list on each of your authorized devices every month.
When you're using your Multi Pearson+ subscription plan in a browser, you can select and read from as many titles as you like.