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Integral of cos(1/x)

  1. Apr 13, 2015 #1
    what is the integral of cos(1/x) dx ??
     
  2. jcsd
  3. Apr 13, 2015 #2

    Delta²

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  4. Apr 13, 2015 #3
    thank for help (delta)
     
  5. Apr 14, 2015 #4

    HallsofIvy

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    You have posted a number of these "What is the integral of ... ". Do you understand that very few function can be integrated in terms of elementary functions?
     
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