Help list the twelve 12th roots of unity and show that this group is cyclic please

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.5: Normal Subgroups
Problem 10E: 10. Find all normal subgroups of the octic group.
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Help list the twelve 12th roots of unity and show that this group is cyclic please

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