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Homework Help: (fog)' error?

  1. Nov 16, 2011 #1
    Nevermind all good.
     
    Last edited: Nov 16, 2011
  2. jcsd
  3. Nov 16, 2011 #2

    HallsofIvy

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    If x= 1, u= 5 so [itex]\pi u/10= \pi/2[/itex], not [itex]2.5\pi/10[/itex]
     
  4. Nov 16, 2011 #3
    I got my mistake, thanks..
     
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