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Combine sqrts in denominator

  • To: mathgroup at smc.vnet.net
  • Subject: [mg122397] Combine sqrts in denominator
  • From: Tom D <tomdickens at att.net>
  • Date: Thu, 27 Oct 2011 06:32:01 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com

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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