Does H = {1,3,} ≤ Z4 form a group with C respect to ×4

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter7: Real And Complex Numbers
Section7.3: De Moivre’s Theorem And Roots Of Complex Numbers
Problem 19E
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Does H = {1,3,} ≤ Z4 form a group with
C
respect to ×4
Transcribed Image Text:Does H = {1,3,} ≤ Z4 form a group with C respect to ×4
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