Let w=[1;(π/n)] ,n∈N^∗ a_n =Σ_(p=0) ^(n−1) ((2p+1)/(1−w^(2p+1) )) and b_n =Σ_(p=0) ^(n−1) (n/(1+w^p )) Find all integer n such as a_n =b


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Question Number 87687 by ~blr237~ last updated on 05/Apr/20

$L e t w = [1; \frac{π}{n}], n \in N^{*}$ $a_{n} = \underset{p = 0}{\sum^{n - 1}} \frac{2 p + 1}{1 - w^{2 p + 1}} a n d b_{n} = \underset{p = 0}{\sum^{n - 1}} \frac{n}{1 + w^{p}}$ $F i n d a l l i n t e g e r n s u c h a s a_{n} = b_{n}$
	Answered by mind is power last updated on 05/Apr/20

	$w = e^{i \frac{π}{n}}, t h a t Y o u m e a n$
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