TY  - BOOK
AU  - Asin, Ricardo C.
TI  - Formulas, notes and solved problems on: plane trigonometry 
SN  - 9719013486
AV  - QA 537 .A8 1996 
PY  - 1996///
CY  - Valenzuela City, Philippines
PB  - Tru-copy Publishing House
KW  - PLANE TRIGONOMETRY -- MATHEMATICS
N1  - Chapter 1. basic Mathematics Concepts -- Chapter 2. Trigonometry Using the Triangle Approach -- Chapter 3. Solutions of Right Triangles -- Chapter 4. Solutions of Oblique Triangles
ER  -