Ilker T. Introduction to Trigonometry 2008

Textbook in PDF format

This book is an introduction to trigonometry and trigonometric applications for high school students. Before beginning this book, students should be familiar with the basic properties of angles, triangles and circles, and be able to manipulate and factorize algebraic expressions. The book is divided into five sections.
Fundamentals of Trigonometry
The Unit Circle
Angles and Direction
Units of Angle Measure
Primary Directed Angles
Exercises 1
Right Triangle Trigonometry
Trigonometric Ratios
Trigonometric Identities
Exercises 2
Trigonometric Functions of real Numbers
Trigonometric Functions
Calculating Trigonometric Values
Exercises 3
Trigonometric Theorems and Formulas
Trigonometric Theorems
Trigonometric Formulas
Exercises 4
Applied Trigonometry
Exercise 5
Chapter Summary
Concept Check
Chapter Review Test 1
Chapter Review Test 2
Chapter Review Test 3
Answers