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Re: Combine sqrts in denominator


In[259]:=
Simplify[(1/Sqrt[-h + Sqrt[h^2 + r^2]])*
(1/Sqrt[h + Sqrt[h^2 + r^2]]), h \[Element] Reals]
Out[259]=
1

--- Wolfgang


"Tom D" <tomdickens at att.net> schrieb im Newsbeitrag 
news:j8bcf3$8s3$1 at smc.vnet.net...
> I'm doing a calculation that results in terms of the form
>
> 1/ Sqrt[ -h + Sqrt[h^2 + r^2]] * 1/Sqrt[h + Sqrt[h^2 + r^2]] * (other
> functions)
>
> One sees that this simplifies to (other functions)/r.
>
> It would helpful to make Mathematica perform this simplification, but
> I have not been able to get Simplify[] or FullSimplify[] or anything
> else to do it.
>
> How would I be able to do this?
>
> Thanks,
> Tom
> 




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