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MathGroup Archive 1999

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Re: Canceling square roots with Simplify

  • To: mathgroup at smc.vnet.net
  • Subject: [mg18247] Re: Canceling square roots with Simplify
  • From: Bob Stagat <stagat at mrcsb.com>
  • Date: Thu, 24 Jun 1999 14:24:26 -0400
  • Organization: Deja.com - Share what you know. Learn what you don't.
  • References: <7kpage$49n@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

In article <7kpage$49n at smc.vnet.net>,
  "efarr" <efarr at farr-research.com> wrote:
> Hello,
>
> Try typing in the following in a new session of Mathematica (I'm currently
> running ver 3.0 under WinNT).
>
> Simplify[ Sqrt[b^2]*Sqrt[1/b^2] ]
>
> It seems like the b's should cancel, and I should get 1. Why don't I? Is
> there any workaround?
>

Try using...

PowerExpand[ Sqrt[b^2]*Sqrt[1/b^2] ]

BS


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