+0  
 
0
91
1
avatar+514 

 

I am not sure what to do when facing sumations as hard as this. Thankssmiley

 Feb 7, 2022
 #1
avatar
0

Problem: What is the value of the sum of 1/|1 - z|^2

where z ranges over all 7 solutions (real and nonreal) of the equation z^7 = -1?

 

Answer: 48/7

 Apr 3, 2022

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