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Log[x]/3 - Log[2*(3 + Sqrt[9 + 4*x^2])]/3


Integrate[1/(x*Sqrt[9 + 4*x^2]), x] ==
Log[x]/3 - Log[2*(3 + Sqrt[9 + 4*x^2])]/3



                 1
Integrate[----------------, x] == 
                        2
          x Sqrt[9 + 4 x ]

                                2
Log[x]   Log[2 (3 + Sqrt[9 + 4 x ])]
------ - ---------------------------
  3                   3

Time to compute: 0.02 second

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