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UBA - CienciaS • Ver Tema - [A Resolver] Final 9/9/08
UBACS Q&A Foro WikiCS
Fecha actual 01 May 2024, 22:51




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 Asunto: Re: [A Resolver] Final 9/9/08
NotaPublicado: 22 Feb 2010, 02:09 
Estudiante
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 Asunto: Re: [A Resolver] Final 9/9/08
NotaPublicado: 22 Feb 2010, 10:48 
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Registrado: 04 Nov 2009, 23:15
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Me parece q si, si queres despejar a y en funcion de x, la que no se tiene q anular es la derivada en y


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 Asunto: Re: [A Resolver] Final 9/9/08
NotaPublicado: 22 Feb 2010, 13:33 
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 Asunto: Re: [A Resolver] Final 9/9/08
NotaPublicado: 11 May 2010, 16:37 
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hola! estuve viendo los post del problema 1) y las discuciones que se armaron pero la resolucion del ejercicio es mucho mas simple.
lo unico que hay que hacer es considerar a donde luego por la regla de la cadena. y entonces es mas y . si llamamos por suma de funciones diferenciables y en conclusion para que sea diferenciable deben existir las derivadas parciales y para que existan las derivadas parciales y son las unicas posibilidades. luego tenemos los siguientes datos que no hay que perder de vista! , y y es diferenciable entonces cuando y ademas (esto es lo importante) como es diferenciable pues es una transformacion lineal entonces tambien es diferenciable! entonces cuando porque y . nos piden verificar que g es diferenciable en el luego basta verificar los siguientes limites. cuando y ese limite tiende a cero pues es dato! tambien hay que verificar cuando donde nos queda el siguiente limite: que tambien tiende a cero pues es dato tambien!


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