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(Cos[2*x] - 4*Log[Cos[x]])/4


Integrate[Tan[x]*Sin[x]^2, x] ==
(Cos[2*x] - 4*Log[Cos[x]])/4



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

Cos[2 x] - 4 Log[Cos[x]]
------------------------
           4

Time to compute: 0.01 second

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