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September 19th, 2015, 12:42 PM   #1
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Under what values of n for the sequence the following inequlaities completes?

Hey guys,

Can you say under what values of n for the sequence (6.png attachment) the following inequlaities (7.png and 8.png) completes?

Thank you in advance!
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File Type: png 6.png (18.2 KB, 1 views)
File Type: png 7.png (18.1 KB, 0 views)
File Type: png 8.png (18.1 KB, 0 views)
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September 19th, 2015, 03:06 PM   #2
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For large n, $\displaystyle u_n=\frac{3n+5}{2n+1}\approx 1.5+\frac{7}{4n}$

You should be able to solve for n as needed.
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September 19th, 2015, 04:04 PM   #3
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Thank you!
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