Question 3: Let G be the group of all real 2x2 matrices a c d such that ad-bc +0. under matrix multiplication. Let G be the group of all non-zer real numbers under multiplication. Define : G→ G by φ a (c 9) = ad- bc. Show that is a homomorphism. Can be an isomorphism? Explain your answer.

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 44E: 44. Consider the set of all matrices of the form, where and are real numbers, with the...
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Question 3: Let G be the group of all real 2x2 matrices
a
c d
such that ad-bc +0. under matrix multiplication. Let G be the group of all non-zer
real numbers under multiplication. Define : G→ G by
φ
a
(c 9)
= ad- bc.
Show that is a homomorphism. Can be an isomorphism? Explain your answer.
Transcribed Image Text:Question 3: Let G be the group of all real 2x2 matrices a c d such that ad-bc +0. under matrix multiplication. Let G be the group of all non-zer real numbers under multiplication. Define : G→ G by φ a (c 9) = ad- bc. Show that is a homomorphism. Can be an isomorphism? Explain your answer.
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