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UBA - CienciaS • Ver Tema - [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
UBACS Q&A Foro WikiCS
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 Asunto: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 21 Jul 2010, 08:36 
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Registrado: 26 May 2009, 00:48
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Si me pueden ayudar a resolver el primero y el ultimo se los agradeceria


Última edición por Cristianrock el 29 Sep 2010, 19:34, editado 1 vez en total

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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 21 Jul 2010, 10:51 
Doctor
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Te tiro la onda del





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"What we observe is not nature itself, but nature exposed to our method of questioning..."
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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 21 Jul 2010, 15:27 
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Que lindo que tires una onda 3 dias ante de rendir el recuperatorio :mrgreen:

Ahora que el gradiente es no nulo significa que todas las coordenadas no son cero, pero podrias ser (2,0,3), o me equivoco?


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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 21 Jul 2010, 15:29 
Doctor
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no te equivocas, pero:



y lo mismo con

Luego ninguna derivada se anula...


No veo bien el .

Fjate si lo podés poner a mano porfavor.

Saludos....



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"What we observe is not nature itself, but nature exposed to our method of questioning..."
Werner Heisenberg
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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 21 Jul 2010, 23:23 
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?


Última edición por Cristianrock el 22 Jul 2010, 00:13, editado 1 vez en total

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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 21 Jul 2010, 23:27 
Doctor
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Para el





Cualquier cosa si cometí algún error o algo avisame...


Después veo el inciso ...


Saludos....



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"What we observe is not nature itself, but nature exposed to our method of questioning..."
Werner Heisenberg
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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 21 Jul 2010, 23:32 
Doctor
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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 22 Jul 2010, 00:12 
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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 22 Jul 2010, 00:57 
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Para el 4)b) lo dividí en casos donde el módulo es positivo y cuando es negativo

y me quedo en uno 1/4 y en el otro -1/4, asi que daria cero la integral


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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 22 Jul 2010, 01:45 
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Esto me dice que no da 0

[url]http://www.wolframalpha.com/input/?i=int(((x^2-y)/abs(x^2-y))*x*y)+dx+dy,+x%3D-1..0,y%3D0...1[/url]


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 Asunto: Re: [No Resuelto] 17/07/2010 - 1er Rec - 2er Parcial
NotaPublicado: 22 Jul 2010, 04:41 
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int(((x^2-y)/abs(x^2-y))*x*y) dx dy, y=-1..0,x=0...1


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