Question: No idea for this one. (10 points) Let A = {-1, 1, 2, 4 ) and B = { 1, 2 ) and define relations

No idea for this one.

(10 points) Let A = {-1, 1, 2, 4 ) and B = { 1, 2 ) and define relations R and S from A to B as follows: For all (x, y) E A X B, x Ry -> |x| = ly| and x Sy > x - y is even. State explicitly which ordered pairs are in A X B , R, S, RU S,and Rn S

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