Trigonometry Within Reach

Chapter 1: Trigonometry Basics
1.1 Angles and Their Measure
1.2 Similar Triangles
1.3 Trigonometric Functions
1.4 Properties of the Trigonometric Functions

Chapter 2: Right Triangle Trigonometry
2.1 Trigonometric Functions at Acute Angles
2.2 Trigonometric Functions at Non-Acute Angles
2.3 Applications of Trigonometric Functions

Chapter 3: Radian Measure and the Unit Circle
3.1 Radian Measure
3.2 Applications of Radian Measure

Chapter 4: Graphs of Trigonometric Functions
4.1 Trigonometric Functions of Real Numbers
4.2 Graphing the Basic Sine and Cosine Functions
4.3 Graphing the Variations of Sine and Cosine Functions
4.4 Graphing the Tangent and Cotangent Functions
4.5 Graphing the Secant and the Cosecant Functions

Chapter 5: Trigonometric Identities
5.1 Fundamental Trigonometric Identities
5.2 Verifying Trigonometric Identities
5.3 Sum and Difference Formulas for Cosine
5.4 Sum and Difference Formulas for Sine and Tangent
5.5 Double-Angle and Half-Angle Formulas
5.6 Product-to-Sum and Sum-to-Product Formulas

Chapter 6: Inverse Trigonometric Functions
6.1 Inverse Trigonometric Functions
6.2 Trigonometric Equations I
6.3 Trigonometric Equations II

Chapter 7: Applications of Trigonometry
7.1 The Law of Sines
7.2 The Law of Cosines