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-Csc[x]^2/2 - Log[Sin[x]]

Integrate[Cot[x]^3, x] ==
-Csc[x]^2/2 - Log[Sin[x]] 

                3
Integrate[Cot[x] , x] == 

       2
-Csc[x]
-------- - Log[Sin[x]]
   2
Time to compute: < 0.01 second
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