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Mathematics
Problem
Construct any two non-zero
2
×
2
2\times2
2
×
2
matrices
A
A
A
and
B
B
B
such that
A
B
≠
B
A
AB\ne BA
A
B
=
B
A
. Write both
A
B
AB
A
B
and
B
A
BA
B
A
to verify your claim.
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