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[obm-l] desigualdades!!!
- To: obm-l@xxxxxxxxxxxxxx
- Subject: [obm-l] desigualdades!!!
- From: diego andres <diegoandresk8@xxxxxxxxxxxx>
- Date: Thu, 29 Jun 2006 14:25:05 +0000 (GMT)
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gostaria que alguem tambem resolvesse mais essas questoes:
1) para quaisquer reais positivos a,b,c mostre que :
c(a²-ab+b²)^(1/2)+a(b²-bc+c²)^(1/2) >=b(a²+ac+c²)^(1/2)
2)se somatorio de xi²=1(sao reais positivos) entao determine o valor maximo de:
n n
somatorio[ (xi^5)/( (somatorio xj) - xi ) ]
i=1 j=1
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