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12-7.
  1. Use an appropriate test to determine if the following series converge or diverge. State the test you used. Homework Help ✎

You should recognize the argument of the summation as representing a special value.

This is an alternating series. What is:

Use l'Hôpital's Rule.

Compare this series to:

This is the same as the series below. Which is dominant when k > 5, the numerator or the denominator?