九、(5%) Expand 
in Laurent series with center z = 3i in the neighborhood. Write down at least the first three terms. Determine the precise region of convergence.
阿摩線上測驗
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阿摩線上測驗
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九、(5%) Expand in Laurent series with center z = 3i in the neighborhood. Write down at least the first three terms. Determine the precise region of convergence.