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Trigonometry For Dummies

3.59  ·  Rating Details ·  54 Ratings  ·  5 Reviews
A plain-English guide to the basics of trig
From sines and cosines to logarithms, conic sections, and polynomials, this friendly guide takes the torture out of trigonometry, explaining basic concepts in plain English, offering lots of easy-to-grasp example problems, and adding a dash of humor and fun. It also explains the "why" of trigonometry, using real-world examples th
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Paperback, 368 pages
Published January 28th 2005 by Wiley Publishing
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Miles
Mar 30, 2010 Miles rated it it was ok
Not a bad overview of the subject, but there's nothing there to make it remotely interesting either. I would have liked to have seen more of a historical view, with the sorts of situations that called for the development of trig, and not just more word problems for their own sake. Calculating how big an emu pen can be made from a given length of fencing is a poor demonstration of the mathematics that allowed people to build pyramids and navigate the open ocean, at least in my opinion.
Charyl
May 25, 2016 Charyl rated it liked it  ·  review of another edition
I've never been great at math and only got so far at it in college. I picked up this book in order to get the gist of Trigonometry (not become adept at it). While I did get somewhat of an understanding, I found most of the problems too abstract to visualize. I didn't understand why many of the problems were being worked and what the solutions meant. However, I did get some understanding of what Trigonometry is about. In my opinion, this book is good way to get an idea of the concepts and maybe a ...more
Dhara
Jun 22, 2011 Dhara added it
Sure, I might sound like a geek, okay? But trust me, when I hear Trigonometry, I am literally paralyzed. Not anymore! When I got this book, it was much easier to understand. Okay, this book may not count because it isn't Literature, but I think it was useful. Now, I understand sin, cosine, tan, co-tangent and so much more. (Also check out Pre-Calculus and Calculus for Dummies.)
Daniel Smythe
Aug 26, 2011 Daniel Smythe rated it really liked it
Gotta say I hate trig. But this book really helps you out. Some of the people saying it didn't work probably could have done with getting the Algebra II edition as well. It doesn't matter how good the book is if you stink at math.
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Oct 08, 2009 Firdevs rated it it was amazing
Please be sure to read this book bcs really perfect masterpiece... And five stars from me ,,,,
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“The ancient Greek mathematician Ptolemy was born some time at the end of the first century. Ptolemy based his version of trigonometry on the relationships between the chords of circles and the corresponding central angles of those chords. Ptolemy came up with a theorem involving four-sided figures that you can construct with the chords. In the meantime, mathematicians in India decided to use the measure of half a chord and half the angle to try to figure out these relationships. Drawing a radius from the center of a circle through the middle of a chord (halving it) forms a right angle, which is important in the definitions of the trig functions. These half-measures were the beginning of the sine function in trigonometry. In fact, the word sine actually comes from the Hindu name jiva.” 0 likes
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