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UBA - CienciaS • Ver Tema - [Resuelto] Primer parcial, 18/10/2002
UBACS Q&A Foro WikiCS
Fecha actual 13 May 2024, 15:41

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 Asunto: [Resuelto] Primer parcial, 18/10/2002
NotaPublicado: 15 Oct 2008, 03:03 
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Registrado: 17 May 2008, 23:04
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Decidir si las siguientes afirmaciones son verdaderas o falsas. Justificar:
i)Sean tales que . Entonces es inversible.
ii)Sea tal que . Entonces existe tal que

Disculpen la desprolijidad de la última parte. Espero haber ayudado(Juanma y Agustín resolvieron mucho; es difícil encontrar buenos ejercicios...). Saludos.

edit: las letras estaban mal en algún punto; error con las y la de ii)... culpa de la hora a la que postié. Gracias.


Última edición por exequiel131719 el 15 Oct 2008, 13:25, editado 1 vez en total


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I offer her that kernel of myself that I have saved, somehow; the central heart that deals not in words, traffics not with dreams and is untouched by time, by joy, by adversities
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 Asunto: Re: [Resuelto] Primer parcial, 18/10/2002
NotaPublicado: 15 Oct 2008, 12:05 
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el la parte ii) cómo se deduce que Rg(B)=2? o ahí estas hablando de la matriz C? me maree jaja


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 Asunto: Re: [Resuelto] Primer parcial, 18/10/2002
NotaPublicado: 15 Oct 2008, 12:48 
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Registrado: 16 May 2008, 22:21
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Ubicación: Pilar, Bs. As.
Che, una cosa:
Y en el creo que tiene razón Diana, , después tomás , y construís como pusiste.

Avisen si está mal lo que digo


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 Asunto: Re: [Resuelto] Primer parcial, 18/10/2002
NotaPublicado: 15 Oct 2008, 13:23 
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Es cierto; estoy hablando de ; desfasaje de letras. Aún así, el , debido a que , y el rango máximo es 2, el número de filas, y si el , particularmente los vectores filas son l.i, y tales filas aparecen en . De igual manera, estaba hablando de , aunque repito, la afirmación que ahora edité, no era falsa; era inútil. Igual gracias... estoy desfasado mentalmente parece... ya lo arreglé... eviten leer esta última respuesta porque atenta contra el entendimiento, me parece. Saludos.



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