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


Integrate[Sin[x]^3/Cos[x], x] ==
(Cos[2*x] - 4*Log[Cos[x]])/4



                3
          Sin[x]
Integrate[-------, x] == 
          Cos[x]

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

Time to compute: 0.01 second

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