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UBA - CienciaS • Ver Tema - [RESUELTO?] Final 27/12/05 Ej: 2
UBACS Q&A Foro WikiCS
Fecha actual 19 Abr 2024, 23:16

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Autor Mensaje
 Asunto: [RESUELTO?] Final 27/12/05 Ej: 2
NotaPublicado: 29 Dic 2008, 18:20 
Ayudante de Primera

Registrado: 01 Ago 2008, 00:26
Mensajes: 104
2. ¿De cuántas maneras se pueden ubicar 10 bolitas rojas, 6 bolitas negras y 16 bolitas blancas en tres cajas distintas de manera que en cada caja el número de bolitas de cada color sea par?


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 Asunto: Re: [RESUELTO?] Final 27/12/05 Ej: 2
NotaPublicado: 29 Dic 2008, 19:27 
Estudiante

Registrado: 10 Oct 2008, 18:51
Mensajes: 39
Ubicación: Capital Federal
Bueno, el problema es que de la primera forma estás contando casos de más.

Es claro que siendo S = separador, R = rojo, A = azul, V = verde, esto:

es lo mismo que:
(por ejemplo)
puesto que si todas están en la misma caja, no importa cómo permutes dentro de ellas..

Por lo tanto, la solución correcta es la segunda forma de verlo!

Espero haber sido claro! Sino cualquier cosa avisame,

Saludos!


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 Asunto: Re: [RESUELTO?] Final 27/12/05 Ej: 2
NotaPublicado: 29 Dic 2008, 20:01 
Ayudante de Primera

Registrado: 01 Ago 2008, 00:26
Mensajes: 104
Ahh buenísimo gracias
tiro otro del mismo final:
5. Sea un polinomio de grado 8. Factorizar f en Q[X] , IR[X] y C[X]
sabiendo que satisface:
f tiene exactamente 5 raíces distintas en C
y son raíces simples de f
f(2) = 0 y f(0) = 4




Uhh, recién acabo de ver que estaba resuelto el 2 acá
viewtopic.php?f=39&t=358
Jajaj parece que lo habré leido e inconcientemente sabía que estaba xq también le puse un signo de pregunta que loco.


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 Asunto: Re: [RESUELTO?] Final 27/12/05 Ej: 2
NotaPublicado: 14 Mar 2009, 23:49 
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Mensajes: 90


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