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(2*Sqrt[b + a*x])/a

Integrate[1/Sqrt[b + a*x], x] ==
(2*Sqrt[b + a*x])/a 

                1
Integrate[-------------, x] == 
          Sqrt[b + a x]

2 Sqrt[b + a x]
---------------
       a
Time to compute: < 0.01 second
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