This book covers all the topics included in the syllabus for Elective Mathematics at the West African Senior School Certificate Examination. The purpose of this book is to provide students with tools they need to be successful in their elective mathematics course. The material is presented in relevant and easy to understand manner. The step- by- step worked examples and many varied exercises help students build their skills. The concise explanation of concepts makes the book excellent for students preparing for the West African Examinations Council examination in elective mathematics.