- Plane Trigonometry by E. Richard Heineman, J. Dalton Tarwater,  1993-01-01
 - Precalculus with Trigonometry: Concepts and Applications, Solutions Manual by Paul Foerster,  2006-05-31
 - Plane and Spherical Trigonometry (Classic Reprint) by George N. Bauer,  2010-09-20
 - Precalculus: With Unit Circle Trigonometry (with CD-ROM and iLrn? Tutorial) by David Cohen,  2005-03-21
 - Graphical Approach to Algebra and Trigonometry, A (5th Edition) (Hornsby/Lial/Rockswold Graphical Approach Series) by John Hornsby, Margaret L. Lial, et all  2010-02-06
 - Algebra & Trigonometry Enhanced with Graphing Utilities (2nd Edition) by Michael Sullivan, Michael J Sullivan,  1999-10-06
 - Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (2nd Edition) (Sullivan Concepts Through Functions Series) by Michael Sullivan, Michael Sullivan III,  2010-02-26
 - Trigonometry the Easy Way by Douglas Downing Ph.D.,  2001-02-01
 - Trigonometry (2nd Edition) by Judith A. Beecher, Judith A. Penna, et all  2007-10-20
 - Trigonometry: A Unit Circle Approach (8th Edition) by Michael Sullivan,  2007-05-18
 - Schaum's Outline Series : Theory and Problems of Plane and Spherical Trigonometry (including 680 problems solved in detail) by Frank Ayres jr,  1954-12
 - Student Solutions Manual College Algebra with Trigonometry by Raymond Barnett, Michael Ziegler, et all  2010-04-14
 - Teach Yourself Trigonometry by P.Abbott,  2003-07-28
 - Algebra 2 With Trigonometry by Be Hall,  1993-06
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