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UBA - CienciaS • Ver Tema - [Resuelto] Ejercicio del segundo parcial, (10/12/07)
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 Asunto: [Resuelto] Ejercicio del segundo parcial, (10/12/07)
NotaPublicado: 03 Jul 2008, 01:09 
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Registrado: 17 May 2008, 23:04
Mensajes: 812
Sea a>0, real, y definida como
a) Encontrar TODOS los posibles valores de a que hacen que f tenga algún punto crítico.
b) Elegir uno de los valores de ''a'' hallados y hacer un análisis de los puntos...(saben el resto ya de memoria, creo)
c)Analizar la existencia de extremos absolutos

Espero que este ejercicio haya contribuído. Saludos, y suerte en el parcial.



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 Asunto: Re: [Resuelto] Ejercicio del segundo parcial, (10/12/07)
NotaPublicado: 03 Jul 2008, 11:32 
Vago

Registrado: 13 May 2008, 17:13
Mensajes: 3
la verdad no recuerdo si este lo hice o era uno muy parecido, pero tengan cuidado porque al tomar a = 4/5 si bien el discriminante se hace 0, el hessiano tambien, asique no vale el criterio. tal vez es mejor tomar a=1 que tambien es una cuenta sencilla y creo que para ese valor el hessiano es distinto de 0.
igual se puede serolver de las 2 formas, y si te da que el hessiano vale 0 y no sabes como resolverlo de otra forma, tomas otro "a" y probas denuevo.
Si me equivoque de ejercicio perdon, pero esta bueno ternerlo en cuenta.


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 Asunto: Re: [Resuelto] Ejercicio del segundo parcial, (10/12/07)
NotaPublicado: 05 Dic 2008, 10:04 
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Registrado: 22 Ago 2008, 00:50
Mensajes: 69
Ubicación: Zona Oeste, Buenos Aires
Muy copado, en particular me puse a mirar la parte a), ya que lo demas son solo "cuentas"

Muchas gracias por el aporteee! :D



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