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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
11 Nov 2021

Given information

Given the series   which converges when   and diverges when 

Step-by-step explanation

Step 1.

The series,    converges when .

 

Thus the radius of convergence of the series is at least 4.

 

That means the series,    at least converges when  

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