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UBA - CienciaS • Ver Tema - Parcial 1er Cuatri 2008 - Diferenciabilidad
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Índice general » Materias » Análisis I - Matemática 1 - Análisis II (C) » Ejercicios de Parciales - Analisis

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Kuin
 Asunto: Parcial 1er Cuatri 2008 - Diferenciabilidad
NotaPublicado: 17 Mar 2010, 10:40 
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Registrado: 30 Ago 2008, 01:56
Mensajes: 27
Decidir si f(x,y) es o no diferenciable en (x,y)=(0,2):



Segun calculé:



y



Luego para saber si es diferenciable tiene que valer




Por algunas curvas ve iba a 0, pero despues no puedo demostrarlo.

PD: No se porque por el editor pareceria que .
Aclaro que no, esto es:


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Nina
 Asunto: Re: Parcial 1er Cuatri 2008 - Diferenciabilidad
NotaPublicado: 12 May 2010, 16:23 
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Por favor si me estoy equivocando (es probable) avisen!


Última edición por Nina el 13 May 2010, 09:32, editado 1 vez en total


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KillSchrodingerCat
 Asunto: Re: Parcial 1er Cuatri 2008 - Diferenciabilidad
NotaPublicado: 12 May 2010, 23:08 
Doctor
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Registrado: 25 Ago 2009, 12:04
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Ubicación: R^4
te queda algo con creo... Tonz no existe...



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"What we observe is not nature itself, but nature exposed to our method of questioning..."
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Nina
 Asunto: Re: Parcial 1er Cuatri 2008 - Diferenciabilidad
NotaPublicado: 13 May 2010, 09:14 
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Así es, no solo me quedó que no puede ser cero, si no que no existe, porque depende del signo de t y además del m que tome.



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KillSchrodingerCat
 Asunto: Re: Parcial 1er Cuatri 2008 - Diferenciabilidad
NotaPublicado: 13 May 2010, 09:16 
Doctor
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O sea, Super-duper-no-existe no? :P

Ya con lo del módulo alcanza :mrgreen:


Saludos...



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"What we observe is not nature itself, but nature exposed to our method of questioning..."
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Nina
 Asunto: Re: Parcial 1er Cuatri 2008 - Diferenciabilidad
NotaPublicado: 13 May 2010, 09:29 
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jajajajajajaja! :lol:



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Índice general » Materias » Análisis I - Matemática 1 - Análisis II (C) » Ejercicios de Parciales - Analisis

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