1. Find all units in Z[V-3]. Justify your answer. 2. Prove that 2 is an irreducible element in Z[V-3]. 3. * Let Z[V3) = {a+ bv3: a,be Z} be the subring of the ring of complex numbers. Show that there are infinitely many units in Z[v3).3
1. Find all units in Z[V-3]. Justify your answer. 2. Prove that 2 is an irreducible element in Z[V-3]. 3. * Let Z[V3) = {a+ bv3: a,be Z} be the subring of the ring of complex numbers. Show that there are infinitely many units in Z[v3).3
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 54E
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