Authors: J. Douglas Faires, Martin J. Erickson, Rick Gillman, Harold Braun Reiter, Scott A. Annin
Related Series: American Mathematics Competitions
The Problem Books book series by multiple authors includes books Trigonometry: A Clever Study Guide (Problem Books), Aha! Solutions, Hungarian Problem Book IV, and several more. See the complete Problem Books series book list in order, box sets or omnibus editions, and companion titles.
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