Cohen, David <br/><br/>
Precalculus with unit-circle trigonometry 
David Cohen. 
 - 3rd ed. 
 - Albany, NY  ITP  1998. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0534352758 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions<br/>Trigonometry<br/>Algebra
<br/><br/><label>LC Class. No.: </label>QA331.3 .C64 1998 
<br/><br/><label>Dewey Class. No.: </label>