Preface
In revising the second edition, the strengths of the prior editions were retained while reflecting the changes
in the study of trigonometry during the last ten years. This edition deletes the use of logarithms entirely,increases the use of calculators,
and changes from the column form of working identity problems to the
horizontal continuous equation form. Tables are still provided for finding trigonometric function values in 10-minute intervals,
tenth of a degree intervals, and hundredth of a radian intervals. The review of geometry is
still provided in an appendix.
The book is complete in itself and can be used equally well by those who are studying trigonometry for the first time and those who are reviewing the fundamental principles
and procedures of trigonometry.
Each chapter contains a summary of the necessary definitions and theorems followed by a solved set of problems. These solved problems include
the proofs of the theorems and the derivation of formulas. The
chapters end with a set of supplementary problems with their answers.
Triangle solution problems, trigonometric identities, and trigonometric equations require a knowledge of elementary algebra. The problems have been carefully
selected and their solutions have been spelled out in
detail and arranged to illustrate clearly the algebraic processes involved as well as the use of the basic
trigonometric relations.
ROBERTE . MOVER
Hacene@freebooks
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