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Wolfram Mathematica Online Integrator
The world's only full-power integration solver
∫
-x + Tan[a*x]/a

Integrate[Tan[a*x]^2, x] ==
-x + Tan[a*x]/a 

                  2
Integrate[Tan[a x] , x] == 

     Tan[a x]
-x + --------
        a
Time to compute: < 0.01 second
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