Precalculus 2: An Investigation of Trigonometry (Chps 5-9) - Paperback
by Melonie Rasmussen (Author), David Lippman (Author)
The second half of the second edition of Precalculus: An Investigation of Functions. This is an open textbook, available free online. This second portion of the book introduces trigonometry. Trig is introduced through an integrated circle/triangle approach. Identities are introduced in the first chapter, and revisited throughout. Likewise, solving is introduced in the second chapter and revisted more extensively in the third chapter. As with the first part of the book, an emphasis is placed on motivating the concepts and on modeling and interpretation.
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