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 a 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 different levels of students; every library, to...

Contains trigonometric identity proofs for three hundred identities. This book is presented in the form of mathematical games for the reader's enjoyment and includes a concordance of trigonometric identities. It helps students of trigonometry, to find the proofs for trigonometric identities that may be set in class or in exams.