- 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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