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proof by induction?

• To: mathgroup at smc.vnet.net
• Subject: [mg29729] proof by induction?
• From: WebMaster at FarOffGrace.com
• Date: Wed, 4 Jul 2001 18:43:45 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

I'm trying to solve this question, where I must prove this equation by
induction, but im totally stumped, im hoping you can help me out, thanks
the equation is
 
S= A((r^n+1)-1)/(r-1)

• Follow-Ups:
  • Re: proof by induction?
    • From: Tomas Garza <tgarza01@prodigy.net.mx>
  • Re: proof by induction?
    • From: Ken Levasseur <Kenneth_Levasseur@uml.edu>