Attacking Trigonometry Problems

by David S. Kahn

This volume offers a concise, highly focused review of what high school and beginning college undergraduates need to know to successfully solve the trigonometry problems they will encounter on exams. Rigorously tested examples and coherent, to-the-point explanations are presented in an accessible form and will provide valuable assistance in conquering this challenging subject.Rather than serving as a text or treatise, the book focuses on the essentials of trigonometry. All fourteen sections are organized in a manner that allows readers to advance sequentially or to skip around. The approach encourages memorization of ratios and formulas, and the practice problems offer ample opportunities to become comfortable with applying the trig ratios to a variety of settings.

180 pages, Kindle Edition

First published February 18, 2015

Reviews

[Fred Barr · Rating 3 out of 5]

Good reference book

Book is a good reference plenty of practice problems
However the author takes short cuts in solving some of the problems
It would have been better if he showed all the work

[Ella Schnare · Rating 4 out of 5]

Very helpful! thank you!

[Rowan Ji · Rating 5 out of 5]

Extremely erotic

[G. Branden · Rating 3 out of 5]

Not a bad little book. Direct and accessible, and no typos in the math itself that I could see.

The biggest defect from my perspective was that not all of the trigonometric identities used were proven. Most were, but not all.

Also, I would have emphasized how one can minimize one's memorization burden through some simple tricks.

For instance, once you know the trigonometric form of the Pythagorean Theorem, sin^2 x + cos^2 x = 1, it is easier and more reliable to reconstruct the two other forms of it by remembering that you can divide each term by sin^2 x (or cos^2 x) to obtain them.