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Show that if w is a primitive \(n^{th}\) root of unity for n = 2m, then \(w^2\) is a primitive \(m^{th}\) root of unity.

 Jul 17, 2021
 #1
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Try using Demoivre's Theorem.

 Jul 17, 2021
 #2
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Sorry, haven't learned this formula.

brinlin  Jul 17, 2021

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