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Re: sqrt(x^2) = x


I think Refine[Sqrt[x^2],x>0]

is what you need.



> Dear all, I am new in this group
> How can I tell Mathematica that I want to simplify all expressions 
> Sqrt[x^2] as x, whithout taking into account that x is or not a 
> positive real number?
> Thank you very much
> -- 
> ----
> Francisco Javier García Capitán

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