Trigometry: A Complete Introduction is the most comprehensive yet easy-to-use introduction to Trigometry. Written by a leading expert, this book will help you if you are studying for an important exam or essay, or if you simply want to improve your kwledge. The book covers all areas of trigometry including the theory and equations of tangent, sine and cosine, using trigometry in three dimensions and for angles of any magnitude, and applications of trigometry including radians, ratio, compound angles and circles related to triangles. Everything you will need is here in this one book. Each chapter includes t only an explanation of the kwledge and skills you need, but also worked examples and test questions.
Hugh Neill is a maths teacher who has also been an inspector and chief examiner. His books have helped over 100,000 people improve their mathematics.