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-(Sqrt[a^2 + x^2]/x) + Log[2*(x + Sqrt[a^2 + x^2])]

Integrate[Sqrt[a^2 + x^2]/x^2, x] ==
-(Sqrt[a^2 + x^2]/x) + Log[2*(x + Sqrt[a^2 + x^2])] 

                2    2
          Sqrt[a  + x ]
Integrate[-------------, x] == 
                2
               x

        2    2
  Sqrt[a  + x ]                     2    2
-(-------------) + Log[2 (x + Sqrt[a  + x ])]
        x
Time to compute: 0.03 second
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