Sum

If A = {a, b, c}, B = {x, y}, find A × B, B × A, A × A, B × B

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#### Solution

A = {a, b, c}, B = {x, y}

A × B = {(a, x), (a, y), (b, x), (b, y), (c, x), (c, y)}

B × A = {(x, a), (x, b), (x, c), (y, a), (y, b), (y, c)}

A × A = {(a, a), (a, b), (a, c), (b, a), (b, b), (b, c), (c, a), (c, b), (c, c)}

B × B = {(x, x), (x, y), (y, x), (y, y)}

Concept: Concept of Relations

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