This book discusses the topics of trigonometry, vectors and AC generation in relations to electrical theory. To have a good grasp of electrical theory it is important to have a grasp of trigonometry. Whether we are talking about single phase or polyphase power, trigonometry is a key concept. The first part of this textbook will look at one of the most basic parts of trigonometry, the triangle. Vectors are something that contains magnitude and direction. This is a concept that will continue to follow you throughout your electrical training., Peer reviewed, Textbook
