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Posted January 30, 2014
Posted January 7, 2008
This book presents trigonometry in rigorous way, but the emphasis is on the facts, without getting sidetracked in proofs. The drawings are relevant and clear. Trigonometry Demystified goes into subjects not found in most trigonometry textbooks. It also presents the unit circle model for sine and cosine that allows for angles greater than 90 degrees. The other books I've seen use ratios between the sides of right triangles, so you can't go past 90 degrees. There are some question-and-answer problems in the text, and plenty of multiple-choice test questions. One drawback: There isn't any practical information to go along with the material on hyperbolic functions. Also, the 4D 'hyperspace' stuff is cool, but it may be too esoteric for some readers. This book, combined with a standard school textbook, should make high-students proficient in this subject, and get them ready for more advanced courses such as calculus, analysis, and topology. It's also good for would-be engineers.Was this review helpful? Yes NoThank you for your feedback. Report this reviewThank you, this review has been flagged.
Posted June 19, 2007
Mr. Gibilisco really let me down on this one. I was hoping for a good review of trig, but after a first good chapter on circular functions, we were into hyperbolic functions two chapters later! The book puts too much emphasis on the 'fringe areas.' It leaves one with the feeling 'Just where is the author going with this?' This book is outside the mainstream. Not recommended.Was this review helpful? Yes NoThank you for your feedback. Report this reviewThank you, this review has been flagged.
Posted April 9, 2007
I own all the algebra books in the Demystified series, and I like all of these books. But, when I purchased Geometry Demystified, Trigonometry Demystified, and Physics Demystified, I was very disappointed. Stan Gibilisco is the author of all three of these books. I find Mr. Gibilisco does not explain the subject matter well. I found my college textbooks easier to understand compared to these three books. I find his presentation style confusing! I was looking for books that could take difficult material, and making it easier for high school students to understand. If I had not taking these courses in college, and made good grades in each one of these courses, I would have been utterly lost reading his books.Was this review helpful? Yes NoThank you for your feedback. Report this reviewThank you, this review has been flagged.
Posted December 20, 2003
I am a math dummy. I bought this book at a local store because it looked like I could maybe understand it. I do. For the first time I feel like I know something about trigonometry. Too many math books are just professors showing each other how smart they are. This book taught me something without making me feel stupid. It's the only trig book I have ever seen like this.Was this review helpful? Yes NoThank you for your feedback. Report this reviewThank you, this review has been flagged.
Posted May 27, 2014
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