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a) Let H be the set of elements [a] of GL(2,R) such that ab - bc = 1. Show that H is subgroup of
a) Let H be the set of elements [a] of GL(2,R) such that ab - bc = 1. Show that H is subgroup of GL(2,R). b) How many subgroups does (Z36,) have? What are they?
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A First Course In Abstract Algebra
Authors: John Fraleigh
7th Edition
0201763907, 978-0201763904
