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(-E^(-2*x) + E^(2*x) + 4*x)/2


Integrate[(E^(-x) + E^x)^2, x] ==
(-E^(-2*x) + E^(2*x) + 4*x)/2



            -x    x 2
Integrate[(E   + E ) , x] == 

  -2 x    2 x
-E     + E    + 4 x
-------------------
         2

Time to compute: 0.05 second

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