## Description

## eMath 9: Trigonometric Functions and Sequences

- 300-400 assignments + answers, in three levels of complexity
- Numerous example solutions
- Possibility to add comments and highlight text
- Possibility to check the correctness of the calculation

**Overview:** This book gives a more in-depth treatment of trigonometry. It covers the basic trigonometric functions, how to compute with these and how to solve equations with trigonometric functions. The book also covers sequences in general, particularly arithmetic and geometric sequences, as well as arithmetic and geometric sums.

### Table of contents:

** 1 Preface**

**2 Trigonometry**

2.1 Trigonometry and the Unit Circle

2.2 Trigonometric Formulas

2.3 Sine Equations

2.4 Cosine Equations

2.5 Properties of the Tangent Function

2.6 Tangent Equations

**3 Trigonometric Functions**

3.1 The Basics of Trigonometric Functions

3.2 The Derivative of Trigonometric Functions

3.2.1 The Derivative of the Sine and the Cosine Function

**4 Sequences**

4.1 Sequences in General

4.2 Recursive Sequences

4.3 Arithmetic Sequences

4.4 Geometric Sequences

4.5 The Monotonicity of a Sequence

**5 Summation**

5.1 Arithmetic Sums

5.2 Geometric Sums