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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
9 Nov 2021

Given information

Given alternate series 

Step-by-step explanation

Step 1.

Observe that a series  is called absolutely convergent if the series of absolute values is convergent.

Take the sequence of a partial fraction of the alternate series is  

Since  

Therefore  

Observe that here is a geometric series with

Here, common ratio , so the is convergent

Hence, is absolutely convergent

 

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