1. Sep 24, 2005 #1

   Kruger

   

   I postet the formula below (attachment). I don't know how we can get from the first step to the second. I mean why does that n fall "out" of the square root?

    

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   Kruger, Sep 24, 2005
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3. Sep 24, 2005 #2

   mathman

   

   Science Advisor

   Step 1a, let v=u+n², then lower limit of v is n²
   Step 1b, let u=v
   
   I presume w is independent of u.

    

   mathman, Sep 24, 2005

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