Trig or Treat

This encyclopedia contains trigonometric identity proofs for some three hundred identities. The book is presented in the form of mathematical games for the reader's enjoyment and includes the unique Concordance of Trigonometric Identities, enabling easy reference. "Trig or Treat" is a must-have for: every student of trigonometry, to find the proofs for trigonometric identities that may be set in class or in exams; every teacher of trigonometry, to have easy access to trigonometric identities of different levels of difficulty, to set assignments for students at different levels; every library, to provide a ready resource for students; every aficionado of Sudoku, crossword puzzles, jigsaw puzzles, Tetris, and other games, who loves a new intellectual challenge of a different sort. Book jacket.Adrian, Y E O is the author of 'Trig or Treat', published 2007 under ISBN 9789812776198 and ISBN 9812776192.