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Let A = {6, 8}, B = {1, 3, 5} Show that ...

Let A = {6, 8}, B = {1, 3, 5} Show that R1 = {(a, b) / a `in` A, b `in` B, a - b is an even number } is a null relation. R2 = { (a, b) / a `in` A, b `in` B, a - b is odd number } is an universal relation

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