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anonymous

  • 5 years ago

I need to find a Maclaurin series for f(x) = 3x^2 / (4+5x^3) and the radius of convergence

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  1. anonymous
    • 5 years ago
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    Is this the kind where its f(x)= \[f(0)+f'(0)+f"(0) +... f^n(0)+...\]

  2. anonymous
    • 5 years ago
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    yes it is...

  3. anonymous
    • 5 years ago
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    I'm sorry, my brain is not working properly.... I was about to just take the integral and substitute but I realize that there is an easier way (I just can't remember). Sorry :/

  4. anonymous
    • 5 years ago
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    I'm just not sure if I should start out by trying to put it into the form of 1/(1-x) first? I'm having trouble with that tho...so I thought that perhaps I'd try putting it into binomial form of (1+x)^k...

  5. anonymous
    • 5 years ago
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    Don't quote me on it, but i think its \[3/4 \sum_{n=0}^{\infty}(5/4)^nx^{3n+2}\] It would be nice if you got the final answer to compare... I'm not sure about it though

  6. anonymous
    • 5 years ago
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    ouchie, there should be (-1)^n in it

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spraguer (Moderator)
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