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Logic Gates

A=1,2,3,4,5,6...

Question

A = {1, 2, 3, 4, 5, 6, 7, 8} and if R = {(x, y) : y is one half of x; x, y ∈ A} is a relation on A, then write R as a set of ordered pairs.

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Solution

Since R = {(x, y) : y is one half of x; x, y $\in$ A}

So, R = {(2, 1), (4, 2), (6, 3), (8, 4)}

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