TY  - BOOK
AU  - Mamhot, Millard R., 
AU  - Endam, Joemar C., 
AU  - Mamhot, Alice A., 
AU  - Banagua, Emelyn C., 
AU  - Bantug, Jenette S., 
TI  - Plane & spherical trigonometry: a tetrahedron approach 
SN  - 9789719654056
U1  - 516.24 
PY  - 2015///
CY  - Manila, [Philippines] : 
PB  - Unlimited Books Library Services & Publishing Inc., 
KW  - Trigonometry
KW  - Textbooks
KW  - Problems, exercises, etc.
N1  - Includes index.; Includes bibliographical references (page 213) and index; College
N2  - "Nowadays, the study of trigonometry has indeed become much easier due to the advent of hand-held scientific calculators. This is because values of trigonometric functions can easily be obtained from its buttons and the answers are flashed in seconds on the screen. This is without saying that there is still labor exerted when these values are multiplied and divided which run to many decimal places. This book is written to optimize the power of calculator in solving trigonometric problems. Written syntaxes are provided to guide the students in coming up with the right values. Hence, in learning trigonometry more time can now be devoted in dissecting the problem rather than finding a way out of the computational intricacies."--Provided by publisher.
ER  -