Calingasan, Recto Rex M. <br/><br/>
Trigonometry :  a worktext / 
Recto Rex M. Calingasan 
 - Mandaluyong City, Philippines :  Anvil Publications,  c2013 
 - vii, 208 pages ;  26 cm. 
<br/><br/>Chapter 1. Angle and Angle Measure -- Chapter 2. Trigonometric Functions of Acute Angles -- Chapter 3. Trigonometric Functions of General Angles -- Chapter 4. Right Angle Trigonometry -- Chapter 5. Law of Sines -- Chapter 6. Law of Cosines -- Chapter 7. Circular Functions -- Chapter 8. Inverse Trigonometric Functions -- Chapter 9. Graphs of Trigonometric Functions -- Chapter 10. Trigonometric Identities -- Chapter 11. Sum and Difference of Angle Formula -- Chapter 12. Double-Angle and Half-Angle Formulas -- Chapter 13. Trigonometric Equations -- Chapter 14. Polar Coordinates and Graphs of Polar Equations. 
<br/><br/> Trigonometry: A Worktext covers all the basics of the course through illustrations and examples. 
<br/><br/><label>ISBN: </label>9789712727818 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TRIGONOMETRY
<br/><br/><label>LC Class. No.: </label>QA 531 .C35 2013