Trigonometry

Textbook answers Questions Review

1. Trigonometry of Right Triangles

1.1 Degree and Radian Measure 1.2 Trigonometric Functions in a Right Triangle 1.3 Extending the Domains of Trigonometric Functions to any Angles 1.4 The Law of Cosines 1.5 The Law of Sines 1.6 Areas of Triangles

2. Visualizing Trigonometry

2.1 The Unit Circle 2.2 Graphs of Sine and Cosine 2.3 Graphs of the Other Trigonometric Functions 2.4 The Inverse Trigonometric Functions

3. The Algebra of Trigonometry: Trigonometric Identities

3.1 The Fundamental Identities 3.2 The Angle Sum and Difference Identities 3.3 The Double and Half Angle Identities and Power Reduction 3.4 The Multiple Angle and Product-to-Sum Identities 3.5 Solving Trigonometric Equations

4. Applications of Trigonometry

4.1 Polar Coordinates 4.2 Polar Representation of the Complex Numbers 4.3 De Moivre's Theorem 4.3 Periodic Functions and Modeling the Real World

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