**TRIGONOMETRY – ENGLISH – INTRODUCTION**

Explanations about the scope of the contents covered in the course, as well as by the topics of each of its chapters

Introduction – Preface and Summary of Each One of the Chapters

Chapter 1 – Geometric Sum of Vectors – Vectors Projections

Chapter 2 – Oriented Circumference – Orientation and Dimension of Arcs

Chapter 3 – Definition of Functions – Sine, Cosine, Tangent, Cotangent, Secant, Cosecant

Chapter 4 – Relations between Functions

Chapter 5 – Relations of Functions for Various types of Arcs

Chapter 6 – Algebraic Expressions for Various Operations using Arcs

Chapter 7 – Table of Values for Trigonometric Functions

Chapter 8 – Solutions of Trigonometric Equations

Chapter 9 – Solutions of Triangles using Trigonometry