This encyclopedia includes trigonometric id proofs for a few 300 identities. The e-book is gifted within the kind of mathematical video games for the reader's entertainment and encompasses a concordance of trigonometric identities, allowing effortless reference. Trig or deal with is a must have for: * each scholar of trigonometry, to discover the proofs for trigonometric identities that could be set in school or in checks; * each instructor of trigonometry, to have quick access to trigonometric identities of alternative degrees of hassle, to set assignments for various degrees of scholars; * each library, to supply a prepared source for college students * each aficionado of Sudoku, crossword puzzles, jigsaw puzzles, Tetris, and different video games, who love an highbrow problem.

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