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February 13th, 2017, 11:25 PM  #1 
Newbie Joined: Feb 2017 From: Sri lanka Posts: 1 Thanks: 0  Printing Errors in "Engineering Mathematics 7th ed  K.A. Stroud, Dexter J. Booth" !
I purchased this book few days ago from an eBay seller for a fairly cheap price. I saw a printing error on the 1st page of the "Useful Background Information" section (page xxv). Under the subtopic "Trigonometric identities", my book just says "....^2 theta = 1 + cot^2 theta ". The cosec part is missing! I just want to make sure whether it's just an error all the books have. Not just in mine. Considering the place I bought it, it could be a crooked copy! And I don't want to be misled. So if you have a copy of this book, please check, and let me know. Last edited by skipjack; February 14th, 2017 at 02:58 AM. 
February 14th, 2017, 12:57 AM  #2 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,600 Thanks: 546 Math Focus: Yet to find out. 
Probably a dodgy copy..

February 14th, 2017, 02:56 AM  #3 
Global Moderator Joined: Dec 2006 Posts: 19,190 Thanks: 1649 
What is the book's ISBN (given on page ii)? Google's preview of the 7th Edition paperback doesn't have that printing error.

February 14th, 2017, 04:50 AM  #4 
Math Team Joined: Jul 2011 From: Texas Posts: 2,756 Thanks: 1407  

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