The relation S on Q (rational numbers) given by xSy if and only if x-y is an element of Q (rational numbers). Give the equivalence class of 0, 1, and sqrt 2. I do not have to prove the relation, I just have to give the equivalence class of 0, 1, and sqrt 2. I see the answers listed, but I do not understand how you got to those answers.  [0]=Q [1]=0 sqrt 2={sqrt 2 + x: x is an element of Q}

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