Key Benefit:Dugopolskirs"sTrigonometry, Third Editiongives readers the essential strategies to help them develop the comprehension and confidence they need to be successful in this course. Readers will find enough carefully placed learning aids and review tools to help them do the math without getting distracted from their objectives. Regardless of their goals beyond the course, all readers will benefit from Dugopolskirs"s emphasis on problem solving and critical thinking, which is enhanced by the addition of nearly 1,000 exercises in this edition. Algebraic Prerequisites; Angles and the Trigonometric Functions; Graphs of the Trigonometric Functions; Trigonometric Identities; Solving Conditional Trigonometric Equations; Applications of Trigonometry; Complex Numbers, Polar Coordinates, and Parametric Equations Market:For all readers interested in trigonometry.

**P. Algebraic Prerequisites**

P.1 The Cartesian Coordinate System

P.2 Functions

P.3 Families of Functions, Transformations, and Symmetry

P.4 Compositions and Inverses

Chapter P Highlights

Chapter P Review Exercises

Chapter P Test

**1. Angles and the Trigonometric Functions**

1.1 Angles and Degree Measure

1.2 Radian Measure, Arc Length, and Area

1.3 Angular and Linear Velocity

1.4 The Trigonometric Functions

1.5 Right Triangle Trigonometry

1.6 The Fundamental Identity and Reference Angles

Chapter 1 Highlights

Chapter 1 Review Exercises

Chapter 1 Test

**2. Graphs of the Trigonometric Functions**

2.1 The Unit Circle and Graphing

2.2 The General Sine Wave

2.3 Graphs of the Secant and Cosecant Functions

2.4 Graphs of the Tangent and Cotangent Functions

2.5 Combining Functions

Chapter 2 Highlights

Chapter 2 Review Exercises

Chapter 2 Test

Tying it all Together

**3. Trigonometric Identities**

3.1 Basic Identities

3.2 Verifying Identities

3.3 Sum and Difference Identities for Cosine

3.4 Sum and Difference Identities for Sine and Tangent

3.5 Double-Angle and Half-Angle Identities

3.6 Product and Sum Identities

Chapter 3 Highlights

Chapter 3 Review Exercises

Chapter 3 Test

Tying it all Together

**4. Solving Conditional Trigonometric Equations**

4.1 The Inverse Trigonometric Functions

4.2 Basic Sine, Cosine, and Tangent Equations

4.3 Multiple-Angle Equations

4.4 Trigonometric Equations of Quadratic Type

Chapter 4 Highlights

Chapter 4 Review Exercises

Chapter 4 Test

Tying it all Together

**5. Applications of Trigonometry**

5.1 The Law of Sines

5.2 The Law of Cosines

5.3 Area of a Triangle

5.4 Vectors

5.5 Applications of Vectors

Chapter 5 Highlights

Chapter 5 Review Exercises

Chapter 5 Test

Tying it all Together

**6. Complex Numbers, Polar Coordinates, and Parametric Equations**

6.1 Complex Numbers

6.2 Trigonometric Form of Complex Numbers

6.3 Powers and Roots of Complex Numbers

6.4 Polar Equations

6.5 Parametric Equations

Chapter 6 Highlights

Chapter 6 Review Exercises

Chapter 6 Test

Tying it all Together

Appendix A: Solutions to Try This Exercise

Appendix B: More Thinking Outside the Box

Answers to All Exercises