[SPAM] [obm-l] outra tangente a curva

["Tio Cabri st" <ilhadepaqueta@xxxxxxxxxx>]

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Boa noite, será que alguém entre uma ceia e outra poderia me auxiliar nesta:

Determine uma reta paralela a x+y=1 (daqui extraio que esta reta tem
coeficiente angular -1) e tangente à curva y^3 +xy+ x^3=0 em um ponto
(x0,y0), com x0<0 e y0<0.

Reposta: x + y = -1

Obrigado Cabri

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