Let w and a denote the primitive third and sixth roots of unity, respectively. Prove that Q(a) = Q(w). Further, obtain [Q(a): Q].

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.5: Graphs Of Functions
Problem 55E
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Let w and a denote the primitive third and
sixth roots of unity, respectively. Prove that
Q(a) = Q(w). Further, obtain [Q(α) : Q].
Transcribed Image Text:Let w and a denote the primitive third and sixth roots of unity, respectively. Prove that Q(a) = Q(w). Further, obtain [Q(α) : Q].
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