Q-1 List the ordered pairs in the relation R from A = \{0, 1, 2, 3, 4\} to B = \{0, 1, 2, 3\} where (a, b)ER if and only if
(a) a = b (d) alb
(b) z + b = 4
(e) gcd ged (a, b) = 1
(c) a > b
(1) n(a, b) = 2
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