Cohen, David, 1942- <br/><br/>
Precalculus with unit-circle trigonometry / 
David Cohen. 
 - 2nd ed. 
 - Minneapolis/St. Paul :  West Pub.,  c1994. 
 - xiv, 772 pages :   illustrations ;   26 cm 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0314012540 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions.<br/>Algebra.<br/>Trigonometry.
<br/><br/><label>LC Class. No.: </label>QA331.3   / C66 1994