Question

# Which of the following is the relation (R) for the given sets A = {1, 2, 3, 4}, B = {a, b, c}.

A

{(1, a), (1, b), (1, c)}

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B

{(6, a), (2, b), (2, c)}

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C

{(3, a), (5, b), (3, c)}

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D

(4, a), (4, b), (4, d)}

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Solution

## The correct option is A {(1, a), (1, b), (1, c)} A × B = {(1, a), (1, b), (1, c), (2, a), (2, b), (2, c), (3, a), (3, b), (3, c), (4, a), (4, b), (4, c)} Option A {(1, a), (1, b), (1, c)} is a subset of A × B Option B {(6, a), (2, b), (2, c)} is not a subset of A × B Option C {(3, a), (5, b), (3, c)} is not a subset of A × B Option D (4, a), (4, b), (4, d)} is not a subset of A × B

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