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Re: Expanding a Square Root
*To*: mathgroup at smc.vnet.net
*Subject*: [mg50827] Re: Expanding a Square Root
*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
*Date*: Wed, 22 Sep 2004 04:52:05 -0400 (EDT)
*Organization*: Universitaet Leipzig
*References*: <ciqvh5$ilb$1@smc.vnet.net>
*Reply-to*: kuska at informatik.uni-leipzig.de
*Sender*: owner-wri-mathgroup at wolfram.com
Hi,
Sqrt[3799 + 792*Sqrt[23]] // FullSimplify
???
Regards
Jens
Jim Dars wrote:
>
> Hi All,
>
> I should point out that I use Mathematica 4.0 infrequently, thus I may be
> missing the obvious. My problem is as follows:
>
> In the following I use the square root sign from the palette for SQRT
> Expand[(44+9*SQRT(23))^2] yields
> 3799 + 792*SQRT(23)
>
> I now wish to take the square root of 3799 + 792*SQRT(23) to return to my
> original expression. However
>
> Expand[SQRT(3799 + 792*SQRT(23))] merely yields
>
> [SQRT(3799 + 792*SQRT(23))]
>
> What is the proper command to make SQRT(3799 + 792*SQRT(23)) yield
> 44+9*SQRT(23)
>
> Best wishes, Jim
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