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Let \(A = \{1,2,3,7\}\) and \(B = \{3,0,-1,7\}\), which of the following are relation from \(A\) to \(B\)?
(i) \(R_1 = \{(2,1), (7,1)\}\)
(ii) \(R_2 = \{(-1,1)\}\)
(iii) \(R_3 = \{(2,-1), (7,7), (1,3)\}\)
(iv) \(R_4 = \{(7,-1), (0,3), (3,3), (0,7)\}\)
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