This video is going to be part 1 of our practice finding if a series is absolutely or conditionally convergent.
Finding if a series is absolutely or conditionally convergent may be something that you are frequently asked to do on homework, quizzes, and tests. However, absolute and conditional convergence can be very useful for a series which has terms which neither alternate in sign, nor have one consistent sign.
I show an example of that in this video, so you don't think that proving if a series is absolutely convergent or conditionally convergent is just a waste of time (that's what I thought at first).
Lastly, finding if a series is absolutely or conditionally convergent is not any more rigorous than the tests you have been working with. However, it makes the problem more involved because you end up proving if two separate series converge or diverge.
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