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About integral

  1. Jan 21, 2008 #1
    show that
    1/2+1/3+...1/n < [tex]\int [/tex]dx/x < 1+1/2+1/3+....1/(n-1)

    inside the integral is from 1 to n.

    thx
     
    Last edited: Jan 22, 2008
  2. jcsd
  3. Jan 21, 2008 #2

    mjsd

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    Homework Helper

    don't understand what's going here... but my guess is that you are trying to prove something about how two ways of approximating an integral (one underestimates it, the other overestimates it)... so best way to see this is to draw a diagram and look at the rectangles...
     
  4. Jan 22, 2008 #3
    thx, so much
     
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