Show that in any field F, the equation ² = two solutions. Can you think of a field in which the equation x² = 1 can have at most 1 has exactly one solution?

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter5: Rings, Integral Domains, And Fields
Section5.2: Integral Domains And Fields
Problem 22E: Prove that if R and S are fields, then the direct sum RS is not a field. [Type here][Type here]
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Show that in any field F, the equation ²
=
two solutions. Can you think of a field in which the equation
x²
=
1 can have at most
1 has exactly one solution?
Transcribed Image Text:Show that in any field F, the equation ² = two solutions. Can you think of a field in which the equation x² = 1 can have at most 1 has exactly one solution?
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