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- #1

- Thread starter Yankel
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- Thread starter
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- #2

- Jan 26, 2012

- 4,197

What ideas have you had so far?

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- #3

- Jan 26, 2012

- 890

hello,

I need some help with this limit...

[tex]\lim_{x\to \infty }\frac{(2x-1)^{10}(x-2)^{30}}{(x+1)^{20}(2x+3)^{20}}[/tex]

thanks...

for \( x\ne 0 \) divide each of the 40 brackets at top and bottom by \(x\):

\[ \frac{(2x-1)^{10}(x-2)^{30}}{(x+1)^{20}(2x+3)^{20}}= \frac{(2-x^{-1})^{10}(1-2x^{-1})^{30}}{(1+x^{-1})^{20}(2+3x^{-1})^{20}}\]

CB