From: nma@12000.org   
      
   Using Rub 4.2:   
      
   ---------------------   
   ShowSteps = False;   
   int = ((2^(-x) - 3^(-x))/x)^a;   
   Assuming[Element[a, Integers] && a > 0, Int[int, x]]   
   ----------------------   
      
   (((2^(-x) - 3^(-x))/x)^a*x^a*   
       Int[(2^(-x) - 3^(-x))^a/x^a, x])/(2^(-x) - 3^(-x))^a   
      
   My question, Am I reading this right: I see the   
   integrand printed again, but it is outside the   
   integration again. So it did not do the integration   
   (neither did Mathematica) but why then I see the integrand   
   printed again outside the integral?   
      
   thanks,   
   --Nasser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)