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UBA - CienciaS :: Ver Tema - [Resuelto] 19/5/07 - Ej. 2 - 1ºP
UBA - CienciaS
http://ubacs.com.ar/ubacs/

[Resuelto] 19/5/07 - Ej. 2 - 1ºP
http://ubacs.com.ar/ubacs/viewtopic.php?f=29&t=1632
Página 1 de 1

Autor:  G(X) [ 28 Oct 2009, 22:30 ]
Asunto:  [Resuelto] 19/5/07 - Ej. 2 - 1ºP

Hola. tengo un problema con este ejercicio y agradeceríamos mucho su ayuda.

Se define recursivamente la sucesión: de la siguiente manera:




Conjeturar el valor de para todo natural, y probar su validez por inducción.



Estuve con unos amigos intentando resolverlo por un buen rato, pero no llegamos a nada. Por lo que logramos hacer, la sucesión es 2 en le primer término y después es para cualquier otro valor de n.
Hay que probar eso por inducción. A mi se me ocurrió que la sucesión se puede reescribir como . De ahi probar que eso es para todo n (excepto 2) es bastante fácil, pero probar por inducción que la sucesión original es esa cosa que se nos ocurrió es tan complicado como probar que es igual a (o más). Intentamos plantearlo como una iducción global, pero nos queda siempre un término que nos molesta y no sabemos como despejarlo.
¿Podrían guiarnos con como resolverlo?.
Muchas gracias.

Autor:  Quimey [ 28 Oct 2009, 22:41 ]
Asunto:  Re: [No Resuelto] 19/5/07 - Ej. 2 - 1ºP


Autor:  G(X) [ 28 Oct 2009, 22:49 ]
Asunto:  Re: [No Resuelto] 19/5/07 - Ej. 2 - 1ºP

Ah, ya lo entendí. Muchisimas gracias.

Autor:  jhughes [ 28 Oct 2009, 22:50 ]
Asunto:  Re: [No Resuelto] 19/5/07 - Ej. 2 - 1ºP

Muchas gracias

Autor:  hookdump [ 29 Oct 2009, 22:30 ]
Asunto:  Re: [Resuelto] 19/5/07 - Ej. 2 - 1ºP

Que lindo problema :D Gracias por la resolucion ^^

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