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2*ArcTan[E^x]

Integrate[(2*E^x)/(1 + E^(2*x)), x] ==
2*ArcTan[E^x] 

               x
            2 E
Integrate[--------, x] == 
               2 x
          1 + E

          x
2 ArcTan[E ]
Time to compute: < 0.01 second
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