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Re: help: rewriting a fraction a/b==c/d + e/f

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31006] Re: help: rewriting a fraction a/b==c/d + e/f
  • From: Mark Westwood <mark at galeawestwood.freeserve.co.uk>
  • Date: Tue, 2 Oct 2001 01:20:42 -0400 (EDT)
  • References: <9p93dn$oce$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Okke

Try Apart[1/((x-1)(x^2+x+1))]

Regards
Mark Westwood
Pilot Solutions Ltd



Okke wrote:

> hello,
> i'm trying the mathematica demo by doing some basic mathematics.
> now i'm stuck at rewritting a fraction.
> could somebody please help me by telling  me how to rewrite:
> 
> 1/((x-1)(x^2+x+1)) to A/(x-1) + (Bx+C)/(x^2+x+1)
> or do i have to do that manualy?
> and can mathematica find  the values for A, B and C ?
> Solve[eqn1==eq2,{A}] doesnt solve the problem, and subsituting
> x with 1 doesnt either.
> 
> tia,




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