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Math Help - Find the interval of convergence of the power series

  1. #1
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    Find the interval of convergence of the power series

    Problem 1:

    Find the interval of convergence of the power series

    Σ ( 2^(n+1)(x 3)/(n + 3)3^(n1) )
    n=1


    Thanks in advance

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  2. #2
    Member
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    Feb 2009
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    Chennai
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    hey just use the standard test that is \frac{1}{\rho}=\biggl|\frac{a_{n+1}}{a_n}\biggr|
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