Let C = D = {-3, -2, -1, 1, 2, 3) and define a relation S from G to D as follows: For all (x, y) E C x D, (x, y) = R means that 1/x-1/y is an integer. 1. a. Is 2 S 2? b. Is -1 S-1? c. Is (2, 2) € S? d. Is (2,-2) E S?

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