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-x/2 + ArcTan[x]/2 + (x^2*ArcTan[x])/2


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



Integrate[x ArcTan[x], x] == 

                  2
-x   ArcTan[x]   x  ArcTan[x]
-- + --------- + ------------
2        2            2

Time to compute: 0.06 second

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