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Thread: Quick ? : Identifying function from series

  1. December 10th 2008, 04:24 AM #1
    pi_cubed
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    Quick ? : Identifying function from series

    Hello! Does anyone know offhand the function that the Maclaurin series given by [(-1)^n * x^(2n) / (n+1)], n=0..., represents? Thanks!!
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  2. December 10th 2008, 04:32 AM #2
    Mathstud28
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    Quote Originally Posted by pi_cubed View Post
    Hello! Does anyone know offhand the function that the Maclaurin series given by [(-1)^n * x^(2n) / (n+1)], n=0..., represents? Thanks!!
    Yeah, try looking at \frac{\ln\left(1+x^2\right)}{x^2}
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