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anonymous

  • 5 years ago

use direct comparison test to prove Σ(k^(4/3)/(8k^2+5k+1))is divergent

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  1. anonymous
    • 5 years ago
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    use \[1/k ^{2/3}\]

  2. anonymous
    • 5 years ago
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    I did But it is higher than the original equation

  3. anonymous
    • 5 years ago
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    you cant use limit comparison test?

  4. anonymous
    • 5 years ago
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    The book said Use comparison test But there is another section saying "Limit comparison test"

  5. anonymous
    • 5 years ago
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    limit comparison test is easier because it does not have to be smaller

  6. anonymous
    • 5 years ago
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    can i make it to k^(4/3)/(8k^2+8k^2+8k^2) just to make it smaller?

  7. anonymous
    • 5 years ago
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    so it will become 1/24k^(2/3) and it will pass the p test and smaller

  8. anonymous
    • 5 years ago
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    you have to use a function that you know diverges by some rule in this case divergent p series

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spraguer (Moderator)
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