Logaritmos

Páginas: 2 (262 palabras) Publicado: 7 de noviembre de 2012
logaritmos
1) [pic]

[pic] cancelando los logaritmos tenemos.
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[pic][pic] [pic][pic]

2) [pic]

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[pic] [pic][pic] [pic][pic]

[pic] [pic] [pic] [pic] [pic] [pic] y [pic]





3) [pic] Se tiene quemultiplicar por [pic]

[pic][pic][pic][pic]

[pic] [pic]

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[pic] /[pic]

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Sea [pic] [pic] [pic] hay que resolver la ecuacióncuadrática en y

[pic] [pic]

[pic] y [pic] Luego como [pic]


Tenemos que [pic] y [pic]



[pic] y [pic]Encontrando que:


[pic] y [pic]









4) [pic]


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5) [pic]


[pic][pic]

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6) [pic]

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Ahora hay que resolver la ecuación cuadrática encontrada, entoncestenemos

[pic] de donde

[pic] y [pic]



7) [pic]

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[pic] Se eleva todo al cuadrado para eliminar la raíz

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8) [pic][pic]

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9) [pic]

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[pic] simplificando se obtiene

[pic] elevando a ambos lados al cuadrado queda

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=[pic] obteniendo para x

[pic] y [pic]

10) [pic]

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[pic][pic] [pic]

11) [pic]

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[pic] donde


[pic] y [pic]

12) [pic]...
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