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# Trigonometry

**by**Lial, Margaret L.; Hornsby, John; Schneider, David I.

7th

### 9780321057594

0321057597

Hardcover

1/1/2001

Addison Wesley

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This is the 7th edition with a publication date of 1/1/2001.

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## Summary

This book, intended for a graphing calculator optional trigonometry course, offers students the content and tools they will need to successfully master trigonometry. The authors have addressed the needs of students who will continue their study of mathematics, as well as those who are taking trigonometry as their final mathematics course. Emphasis is placed on exploring mathematical concepts by using real date, current applications and optional technology.

## Table of Contents

(*Each chapter ends with a Summary, Chapter Review Exercises, and a Chapter Test.*) ** 1. The Trigonometric Functions. **

Basic Concepts.

Angles.

Angle Relationships and Similar Triangles.

Definitions of the Trigonometric Functions.

Using the Definitions of the Trigonometric Functions.

Angles.

Angle Relationships and Similar Triangles.

Definitions of the Trigonometric Functions.

Using the Definitions of the Trigonometric Functions.

**2. Acute Angles and Right Triangles.**

Trigonometric Functions of Acute Angles.

Trigonometric Functions of Non-Acute Angles.

Finding Trigonometric Function Values Using a Calculator.

Solving Right Triangles.

Further Applications of Right Triangles.

Trigonometric Functions of Non-Acute Angles.

Finding Trigonometric Function Values Using a Calculator.

Solving Right Triangles.

Further Applications of Right Triangles.

**3. Radian Measure and the Circular Functions.**

Radian Measure.

Applications of Radian Measure.

Circular Functions of Real Numbers.

Linear and Angular Velocity.

Applications of Radian Measure.

Circular Functions of Real Numbers.

Linear and Angular Velocity.

** 4. Graphs of the Circular Functions. **

Graphs of the Sine and Cosine Functions.

Translations of the Graphs of the Sine and Cosine Functions.

Graphs of the Other Circular Functions.

Translations of the Graphs of the Sine and Cosine Functions.

Graphs of the Other Circular Functions.

**5. Trigonometric Identities.**

Fundamental Identities.

Verifying Trigonometric Identities.

Sum and Difference Identities for Cosine.

Sum and Difference Identities for Sine and Tangent.

Double-Angle Identities.

Half-Angle Identities.

Verifying Trigonometric Identities.

Sum and Difference Identities for Cosine.

Sum and Difference Identities for Sine and Tangent.

Double-Angle Identities.

Half-Angle Identities.

**6. Inverse Trigonometric Functions and Trigonometric Equations.**

Inverse Trigonometric Functions.

Trigonometric Equations I.

Trigonometric Equations II.

Equations Involving Inverse Trigonometric Functions.

Trigonometric Equations I.

Trigonometric Equations II.

Equations Involving Inverse Trigonometric Functions.

**7. Applications of Trigonometry and Vectors.**

Oblique Triangles and the Law of Sines.

The Ambiguous Case of the Law of Sines.

The Law of Cosines.

Vectors and the DOT Product.

Applications of Vectors.

The Ambiguous Case of the Law of Sines.

The Law of Cosines.

Vectors and the DOT Product.

Applications of Vectors.

**8. Complex Numbers, Polar Equations, and Parametric Equations.**

Complex Numbers.

Trigonometric (Polar) Form of Complex Numbers.

Product and Quotient Theorems.

Powers and Roots of Complex Numbers.

Polar Equations and Graphs.

Parametric Equations, Graphs, and Applications.

Trigonometric (Polar) Form of Complex Numbers.

Product and Quotient Theorems.

Powers and Roots of Complex Numbers.

Polar Equations and Graphs.

Parametric Equations, Graphs, and Applications.

**9. Exponential and Logarithmic Functions.**

Exponential Functions.

Logarithmic Functions.

Evaluating Logarithms and the Change-of-Base Theorem.

Exponential and Logarithmic Equations.

Logarithmic Functions.

Evaluating Logarithms and the Change-of-Base Theorem.

Exponential and Logarithmic Equations.

**Answers to Selected Exercises.**

**Index.**

**Index of Applications.**