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Summation problem

  1. Dec 7, 2009 #1
    Please look at the attachments (for the problem and my work) , thank you.

    The answer from the book is 2.84 but I got 14.4.

    How come?

    My problem is #23
     

    Attached Files:

  2. jcsd
  3. Dec 7, 2009 #2

    mathman

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    Science Advisor
    Gold Member

    I didn't check all the details of your arithmetic, but it looks like you neglected to multiply by ∆x = .2.
     
  4. Dec 7, 2009 #3
    Thanks!
     
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