[obm-l] Interse��o entre curvas

To: "obm-l" <obm-l@xxxxxxxxxxxxxx>
Subject: [obm-l] Interse��o entre curvas
From: "Ricardo J.Fernandes" <ricgjf@xxxxxxxxxxxx>
Date: Sat, 5 May 2007 07:46:56 -0300
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Algu�m pode me ajudar com essa quest�o

Desde j� obrigado

a)Para quais n�meros positivos a a curva y=a^x intersecta a reta y=x?

b)Para quais valores de c existe uma reta que intercepta a curva y=x^4+cx^3+12x^2-5x+2

em quatro pontos distintos?

Abra�os,Ricardo J.F.

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