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Math Help - how to finish this proof

  1. #1
    MHF Contributor
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    how to finish this proof

    |(n^2 +10)/(n^3 -10)|<(n^2 +10)/(n^3)< ..<e

    i need some (1/n)<e


    ??
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  2. #2
    Super Member flyingsquirrel's Avatar
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    Hi,

    We have \frac{n^2 +10}{n^3}=\frac{n^2}{n^3}+\frac{10}{n^3}=\frac{1}{  n}+\frac{10}{n^3} therefore...
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  3. #3
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    i need to find an expression which is bigger then what you showed
    and has "n" in power 1
    in the dominator
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  4. #4
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    i got

    n>10/(e-1)


    what to write about N ??
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