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UBA - CienciaS :: Ver Tema - Pregunta: calcular raices usando ramas del logaritmo
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Pregunta: calcular raices usando ramas del logaritmo
http://ubacs.com.ar/ubacs/viewtopic.php?f=170&t=1104
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Autor:  bel [ 14 May 2009, 20:37 ]
Asunto:  Pregunta: calcular raices usando ramas del logaritmo

eso.. qué vendría queriendo decir?? (ya sée que si no lo vimos no nos lo van a tomar, pero bueno).
Por ejemplo en un parcial decía calcular usando la rama principal del logaritmo, y de hecho en otro ejercicio definía una función como la función raiz cuadrada usando alguna rama del logaritmo dada.
estuve pensnado un par de cosas pero ninguna tiene sentido, y me parecio bastante interesante esta idea de calcular raíces usando el logaritmo así que si alguien me quiere contar se lo agradezco

besos!

Autor:  Yossarian [ 14 May 2009, 21:38 ]
Asunto:  Re: Pregunta: calcular raices usando ramas del logaritmo

Bueno, la idea es la siguiente:

Vos tenés un número complejo , y querés averiguar cuándo . Como eso es encontrar las raices de un polinomio de grado 2, debe tener dos soluciones... ¿cómo las encontramos?

Una manera de plantear el problema es la siguiente. Seguro que . Ese alguien es , y además debe cumplir que . Entonces, si tenés una rama del logarítmo que esté definida en , podés resolver la ecuación para , y así encontrar .

Autor:  bel [ 14 May 2009, 22:26 ]
Asunto:  Re: Pregunta: calcular raices usando ramas del logaritmo

hmm bueno, gracias! después de mañana lo voy a pensar con más detenimiento.


che, ya no sé qué más estudiar, decime que no estudie más asi no me siento culpable :p


chauu

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