5. Prove (using the subgroup condition rather than using the axioms) that the set a b H = {( 6 ) : Q,CER, DER} :a, ceR*, 0 C is a subgroup of GL₂(R)

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.4: Cosets Of A Subgroup
Problem 2E: For each of the following subgroups H of the addition groups Z18, find the distinct left cosets of H...
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5. Prove (using the subgroup condition rather than using the axioms) that the set
a
H = {( 6 ) : Q,CER₁, DER}
:a, ce
R*,bēR}
is a subgroup of GL₂(R)
Transcribed Image Text:5. Prove (using the subgroup condition rather than using the axioms) that the set a H = {( 6 ) : Q,CER₁, DER} :a, ce R*,bēR} is a subgroup of GL₂(R)
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