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The Cartesian product A x A has 9 elements among which (-1, 0) and (0, 1) are found. Find the set A and the remaining elements of A x A.

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A = {-1, 0, 1}, B = {1, 0, -1}

A x B = {(-1, 1), (-1, 0), (-1, -1), (0, 1), (0, 0), (0, -1), (1,1), (1, 0), (1, -1)}

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