TY  - BOOK
AU  - Enriquez, Jay P.
AU  - Ymas, Sergio E., Jr.
AU  - Herrera, Rubie R.
TI  - Plane trigonometry: with focus on more practical applications trigonometry 
SN  - 9789710438051
PY  - 2014///
CY  - Metro Manila
PB  - Ymas Publishing House
KW  - Trigonometry
N1  - Includes appendix
N2  - Contents: Preliminary concepts. -- Logarithms. -- Solutions of right triangles and applications. -- Vectors and bearings. -- Trigonometric functions of any angle. -- Solutions of oblique triangles. -- Areas of triangles. -- Radians and applications. -- The six circular functions. -- The algebra of circular functions. -- Trigonometric equations. -- Graphs and properties of circular functions. -- Inverse circular functions and their graphs
ER  -