The number of idempotents elements in the ring Z6 is: 1 8 4

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter5: Rings, Integral Domains, And Fields
Section5.1: Definition Of A Ring
Problem 38E: An element x in a ring is called idempotent if x2=x. Find two different idempotent elements in M2().
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The number of idempotents elements in the ring Z is:
1
2
8
4
Transcribed Image Text:The number of idempotents elements in the ring Z is: 1 2 8 4
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