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Let. X = {1, 2, 3, 4, 5, 6, 7, 8,9}. Let...

Let. X = {1, 2, 3, 4, 5, 6, 7, 8,9}. Let `R_(1)`, be a relation on X given by `R_(1)`={(x, y): x - y is divisible by 3)} and `R_(2)`, be another relation on X given by `R_(2)`={(x, y): {x,y) `sub `(1,4,7) or (x, y) `sub` (2,5,8) or (x, y) `sub` (3, 6, 9)}. Show that `R_(1)=R_(2)`.

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