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There seems to be two different ways of Int((1/sin(x))dx). One?


One way is to use csc(x) and the other way is to use sin(x)=2sin(x)cos(x). They seems to give out two different answers. can anyone explain?

both answers are correct. they differ by a constant.

The second identity should be sin( 2x) = 2sin(x)cos(x) , does this help your solution?

http://math.rutgers.edu/~greenfie/mill_c...

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