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The Humongous Book of Trigonometry Problems: 750 Trigonometry Problems with Comprehensive Solutions for All Major Topics (Humongous Books)

by W. Michael Kelley (Author)
4.6 out of 5 stars 228 ratings
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Become a trig master in no time!

Most math and science study guides are a reflection of the college professors who write them: dry, difficult, and pretentious. The Humongous Book of Trigonometry Problems is the exception. Author Mike Kelley has taken what appears to be a typical trigonometry workbook, chock full of solved problems—more than 750!—and made notes in the margins adding missing steps and simplifying concepts and solutions, so what would be baffling to students is made perfectly clear. No longer will befuddled students wonder where a particular answer came from or have to rely on trial and error to solve problems. And by learning how to interpret and solve problems as they are presented in a standard trigonometry course, students become fully prepared to solve those difficult, obscure problems that were never discussed in class but always seem to find their way onto exams.
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  1. ISBN-10
    1615641823
  2. ISBN-13
    978-1615641826
  3. Publisher
    DK
  4. Publication date
    October 2, 2012
  5. Language
    English
  6. Dimensions
    8.5 x 1.03 x 10.88 inches
  7. Print length
    464 pages
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Editorial Reviews

About the Author

W. Michael Kelley is a former award-winning calculus teacher and the author of six math books, including The Complete Idiot's Guide to Algebra, Second Edition, and The Humongous Book of Calculus Problems. Kelley received an award from the Maryland Council of Teachers of Mathematics recognizing him as an Outstanding High School Mathematics Teacher and four-years-running title of Most Popular Teacher in his home school. Kelley is also the founder and editor of calculus-help.com.

Product details

  • Publisher ‏ : ‎ DK (October 2, 2012)
  • Language ‏ : ‎ English
  • Paperback ‏ : ‎ 464 pages
  • ISBN-10 ‏ : ‎ 1615641823
  • ISBN-13 ‏ : ‎ 978-1615641826
  • Item Weight ‏ : ‎ 2.1 pounds
  • Dimensions ‏ : ‎ 8.5 x 1.03 x 10.88 inches
  • Customer Reviews:
    4.6 out of 5 stars 228 ratings

About the author

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W. Michael Kelley

W. Michael Kelley

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W. Michael Kelley started as a high school math instructor in his hometown, and that’s when he got the opportunity to write his first book. Since then, he’s written a bunch of other books and worked a lot of other jobs supporting teaching and learning. He lives in southern Maryland with his stunning wife, his bald dog, and the three kids who are his proudest achievements.

His life goal is to make math hurt less.

Customer reviews

4.6 out of 5 stars
228 global ratings

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Customers say

Customers find the book effective for learning high school trigonometry, explaining concepts lucidly and helping develop problem-solving skills. The book series receives positive feedback from customers.

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34 customers mention "Comprehension"31 positive3 negative

Customers find the book effective for learning trigonometry, explaining concepts clearly and helping develop problem-solving skills.

"...It did not disappoint. Like his other books, Kelley uses LOTS of examples and problems and they all have good explanations...." Read more

"Great deal of work and thought went into developing this great math guide." Read more

"...I also learned a lot from this book and it refreshed a lot of my concepts. It really gave my child a good confidence...." Read more

"Great book- it has helped me a lot during a summer Trigonometry course. (Much more than my teacher, I'm sad to say.)..." Read more

3 customers mention "Book series"3 positive0 negative

Customers love this book series.

"Love this series. Explains in a very easy to understand manner. Would recommend this book to one and all." Read more

"Definitely buy this book. The Humongous Book series are wonderful...." Read more

"Great book and series!..." Read more

Just believe the hype
5 out of 5 stars
Just believe the hype
My child is in 8th grade and it really helped. I also had to sit with my child when I was teaching from this book. I also learned a lot from this book and it refreshed a lot of my concepts. It really gave my child a good confidence. You can't go wrong with this book. I would highly suggest it for 8th and 9th graders.
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Top reviews from the United States

  • Technomage
    5.0 out of 5 stars Great book and series!
    Reviewed in the United States on January 18, 2018
    Verified Purchase
    Michael Kelley's series is the best. I have used some of his other books (Algebra and Calculus) as tutoring aids. I needed to replace the Calculus and Algebra books, so I bought this one as well.It did not disappoint. Like his other books, Kelley uses LOTS of examples and problems and they all have good explanations. For example, I was tutoring someone last night who was struggling with a Trig problem that required factoring. We talked through how to factor, and when I turned to that section in Kelley's book, there were a few problems that required factoring, and Kelley walked the reader through factoring!
    8 people found this helpful
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  • Louis D. Armmand
    5.0 out of 5 stars Finishing this book will make you an expert in trigonometry!
    Reviewed in the United States on September 5, 2023
    Verified Purchase
    Great deal of work and thought went into developing this great math guide.
    One person found this helpful
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  • Sanjeev Dhiman
    5.0 out of 5 stars Just believe the hype
    Reviewed in the United States on September 4, 2021
    Verified Purchase
    My child is in 8th grade and it really helped. I also had to sit with my child when I was teaching from this book. I also learned a lot from this book and it refreshed a lot of my concepts. It really gave my child a good confidence. You can't go wrong with this book. I would highly suggest it for 8th and 9th graders.
    Customer image
    Sanjeev Dhiman
    5.0 out of 5 stars
    Just believe the hype

    Reviewed in the United States on September 4, 2021
    My child is in 8th grade and it really helped. I also had to sit with my child when I was teaching from this book. I also learned a lot from this book and it refreshed a lot of my concepts. It really gave my child a good confidence. You can't go wrong with this book. I would highly suggest it for 8th and 9th graders.
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    2 people found this helpful
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  • Amazonian Customer
    4.0 out of 5 stars Pretty solid book
    Reviewed in the United States on June 29, 2013
    Verified Purchase
    Great book- it has helped me a lot during a summer Trigonometry course. (Much more than my teacher, I'm sad to say.) The Kindle formatting leaves much to be desired on certain questions- it's difficult to tell whether a number is an exponent or coefficient in some places. The places where it explains proving trig identities could use a lot more explanation- I ended up browsing YouTube for video help with those. Overall, I'm glad I had this book- I wouldn't have survived the summer without it! If you have a choice though, definitely spring for the extra $5 for a printed copy. Your eyes will thank you.
    6 people found this helpful
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  • noodler
    5.0 out of 5 stars Thorough But Understandable
    Reviewed in the United States on February 21, 2022
    Verified Purchase
    I used this book, along with others from the same author, to review math work I did in high school and college. It covers everything a high school trigonometry course could conceivably include, but builds up very gradually, so you don't get lost. I highly recommend it. For the price, it is a steal!
    One person found this helpful
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  • Annemarie P
    5.0 out of 5 stars So Much More Than a Math Textbook!!!
    Reviewed in the United States on July 23, 2016
    Verified Purchase
    I had never been moved to laugh out loud by a math book until reading this one. Kelley provides crystal clear explanations laced with a dry wit that actually makes the highly repetitive practice needed to master trig almost enjoyable. This is not your typical math textbook where even after reading through a chapter you might be just as lost as when you started because it assumes too much prior knowledge. At the same time, nothing in this book feels so dumbed down as to be patronizing. I highly recommend it for both trig beginners as well as people brushing up on old trig concepts to make calculus classes easier.
    5 people found this helpful
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  • Luiza Brown
    5.0 out of 5 stars It's like having the best math teacher ever in your home!
    Reviewed in the United States on July 13, 2021
    Verified Purchase
    We have all of this author's math books. They are conversational in tone and our 13 yo loves them! If you thought you couldn't do higher math, or if you came away from school "hating it" you will be surprised how easy W. Michael Kelly makes it to understand.
    One person found this helpful
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  • JOHN G MALCOLM
    5.0 out of 5 stars A WONDERFUL OPPORTUNITY FOR SERIOUS MATH STUDENTS.
    Reviewed in the United States on May 9, 2013
    Verified Purchase
    I HAVE FOUND THE BOOK VERY WELL DONE AS WELL AS ENJOYABLE AND EDUCATIONAL. I AM USING IT AS A RECREATIONAL REVIEW AND A CHALLENGE IN MY OLD AGE. AS A RETIRED MATH TEACHER WITH 38 YEARS ON THE JOB FROM 2O YEARS AGO, I WOULD RECOMMEND THE BOOK TO A MOTIVATED STUDENT WHO WAS WILLING TO PUT THE TIME IN TO SUCCEED. CONGRATULATIONS TO MR KELLEY ON A FINE EFFORT TO HELP STUDENTS WHO ARE LOOKING TO HELP THEMSELVES. I ANTICIPATE DOING THE REST OF THE SERIES. MY GOAL: EVERY PAGE, EVERY PROBLEM, A HUMONGOUS TASK!
    11 people found this helpful
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Top reviews from other countries

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  • Jim
    5.0 out of 5 stars Organised around training even someone of no maths experience
    Reviewed in the United Kingdom on August 8, 2018
    Verified Purchase
    I have several books on trigonometry and I have come to a roadblock with each of them because the authors throw you unexpected curve balls or introduce subjects without explanations. This book uses technical terms and formulas but thoroughly explains each concept .
    I have not read the whole book but am working my way through it. So far I am pleasantly surprised at how much I am able to absorb and enjoy.
    I would recommend this book and it's author wholeheartedly.
    Jim
    Report
  • Priscila
    5.0 out of 5 stars Coleção incrível.
    Reviewed in Brazil on May 27, 2021
    Verified Purchase
    Ótimo pra treinar o inglês e relembrar a matemática através dos muitos exercícios resolvidos passo a passo.
    Report
  • Amazon Customer
    5.0 out of 5 stars As described.
    Reviewed in Canada on May 18, 2022
    Verified Purchase
    I am completely satisfied with my purchase.
    Report
  • Greg
    5.0 out of 5 stars Very good for self-study/self-review
    Reviewed in Australia on August 7, 2021
    Verified Purchase
    This book is part of a series by mathematics teacher Michael Kelly which covers most of the high school mathematics curriculum. Like his other books, this book contains a large set of problems in 18 chapters covering the standard elements of a trigonometry course. The main strength of this book are the problems. The student is encouraged to work through the problems on their own, while Kelly provides worked out solutions in a lot of detail. This book does not replace mathematics textbooks which supply the relevant theory, but as every mathematics teacher knows, the only way to learn mathematics is to do the problems. This book is an excellent resource for students who are doing trigonometry in their school classes, as well as for college students or adults who are preparing for more advanced mathematics courses in calculus or linear algebra, which require a sound knowledge of basic math, algebra, geometry and trigonometry.
    Report
  • Michael Owen
    5.0 out of 5 stars Great for studying or just like to catch up.
    Reviewed in the United Kingdom on August 24, 2021
    Verified Purchase
    Its great for students and anyone who has forgot a few things.
    Report