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Re: a simplification problem


Well, you cannot simplify (-1)^(1/3) to -1, because it equals 
1/2+I*Sqrt[3]/2.

This can be easily verified by

ComplexExpand[(-1)^(1/3)]

Torsten


Hui Fang wrote:
> Dear All,
> 
> My questions is simple:
> How do I simplify (-1)^(1/3) to -1?
> 
> Thanks!
> 


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