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Mathematics
Problem
The Cartesian product
A
×
A
A \times A
A
×
A
has 9 elements among which are found
(
−
1
,
0
)
(-1, 0)
(
−
1
,
0
)
and
(
0
,
1
)
(0, 1)
(
0
,
1
)
. Find the set
A
A
A
and the remaining elements of
A
×
A
A \times A
A
×
A
.
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