III. The following series is a rearrangement of the alternating harmonic series in which there appear alternately three positive terms followed by two negative terms
6. (15%) Show that this series converges and has sum ln 
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阿摩線上測驗
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阿摩線上測驗
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III. The following series is a rearrangement of the alternating harmonic series in which there appear alternately three positive terms followed by two negative terms
6. (15%) Show that this series converges and has sum ln .