Adanza, Estela Galicano <br/><br/>
Plane trigonometry :  for freshman maritime students / 
Estella Galicano-Adanza [and four others] 
 - Manila, Philippines :  Rex Book Store,  c1994 
 - 223 pages :  illustrations ;  26 cm. 
<br/><br/>Chapter 1. The circular functions -- Chapter 2. Trigonometry: the triangle approach -- Chapter 3. Solutions of right triangles and their applications -- Chapter 4. Proving identities -- Chapter 5. Functions of composite angles -- Chapter 6. Trigonometry functions -- Chapter 7. Solution of oblique triangles -- Chapter 8. Complex numbers. 
<br/><br/> The word "trigonometry" is based on the greek words for triangle and measure. The study dates back more than 3 000 years and is fast becoming one of the pillars of modern mathematics. 
<br/><br/><label>ISBN: </label>9712315320 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TRIGINOMETRY -- MATHEMATICS -- MARITIME
<br/><br/><label>LC Class. No.: </label>QA 154.2 .A20 1994