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UBA - CienciaS • Ver Tema - Final 22/7/2014 Ejercicio 2
UBACS Q&A Foro WikiCS
Fecha actual 03 May 2024, 21:16

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 Asunto: Final 22/7/2014 Ejercicio 2
NotaPublicado: 29 Abr 2015, 16:03 
Vago

Registrado: 29 Abr 2015, 15:34
Mensajes: 2
a)Probar que para todo n vale que:


b)Probar que para todo n es divisible por y no es divisible por

La parte a) la pude resolver bien, pero la parte b) no pude hacerla. Trate por induccion, pero no sale. ¿Alguien me da una mano por favor?
Gracias!


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 Asunto: Re: Final 22/7/2014 Ejercicio 2
NotaPublicado: 29 Abr 2015, 18:11 
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Registrado: 05 Jul 2008, 14:02
Mensajes: 1166
Creo que sale por inducción usando también el a). Fijate que



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Quimey
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 Asunto: Re: Final 22/7/2014 Ejercicio 2
NotaPublicado: 24 Jul 2015, 17:57 
Vago

Registrado: 23 Jul 2015, 19:31
Mensajes: 6
Yo no puedo plantear el uno! Va, si puedo, pero me queda algo que no se como salir..



Y de aca no se como hacer! O sea, puedo distribuir, y me queda 2*(2n+1).. o un (2n+2) del otro lado, pero no se que hacer con las productorias :S


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 Asunto: Re: Final 22/7/2014 Ejercicio 2
NotaPublicado: 26 Jul 2015, 19:33 
Vago

Registrado: 30 Dic 2014, 22:26
Mensajes: 7


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