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[obm-l] Racionais
- To: obm-l@xxxxxxxxxxxxxx
- Subject: [obm-l] Racionais
- From: Klaus Ferraz <klausferraz@xxxxxxxxxxxx>
- Date: Wed, 8 Mar 2006 19:42:11 +0000 (GMT)
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Dado n natural, existem x,y,z,w racionais tais que (x+y*sqrt(2))^2n+(z+w*sqrt(2))^2n=5+4*sqrt(2)?
Suprimindo-se um dos elementos do conjunto {1,2,....,n} a media aritmetica dos elementos restantes é igual a 16,1. Determine:
a) o valor de n
b) o elemento suprimido
n=31 , a=13
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