Neill, Hugh, <br/><br/>
Trigonometry :  a complete introduction / 
Paul Abbott ; revised by Hugh Neill. 
 - xii, 187 pages :  illustrations ;  22 cm 
<br/><br/> Includes index. 
<br/><br/>The tangent -- Sine and cosine -- In three dimensions -- Angles of any magnitude -- Solving simple equations -- The sine and cosine formulae -- Radians -- Relations between the ratios -- Ratios and compound angles -- The forms a sin x and b cos x -- The factor formulae -- Circles related to triangles -- General solution of equations. 
<br/><br/> Trigonometry: A Complete Introduction is the most comprehensive yet easy-to-use introduction to Trigonometry. Written by a leading expert, this book will help you if you are studying for an important exam or essay, or if you simply want to improve your knowledge. 
<br/><br/><label>ISBN: </label>9781473678491 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>LC Class. No.: </label>QA531  / .N44 2018 
<br/><br/><label>Dewey Class. No.: </label>516.24