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Penn State Schuylkill - SPRING 2011 | ||
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 | Plane Trigonometry (7th Edition) by Ellis Richard Heineman, J. Dalton Tarwater Hardcover, 320 Pages, Published 1993 ISBN-10: 0-07-028187-4 / 0070281874 ISBN-13: 978-0-07-028187-5 / 9780070281875 This revision of a best-selling plane trigonometry text for freshmen and sophomores maintains the trademarks of clear, concise exposition coupled with graded problems. The result is a fresh and modern version of a classic text. Major changes include an emphasis on the use of calculators and calculat | |