2. Decide whether each of the following sets is a subgroup of G = {1,-1, i,...

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Question

2. Decide whether each of the following sets is a subgroup of G = {1,-1, i, -i} under multiplication. If a set is not a subgr

Answer 1

Answer #1

a Gr= {1,-1} - this is a subgroup because 1x1=1EG, -1X1 - 1 EG, Closure - Associative is saksbred because all the elements fr

Answer 2

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