b) Given the following relations: A r & 0 В 8 B 3 8 5 7 C 9 14 8 12 A В 8 D 7 8 S Find (i) the Cartesian product of r and s (rx s). (ii) the Cartesian product of r and s and then performing a selection operation on the result with the predicate r.A = s.A (Or.A-S.A (1 x S)). (iii) the projection of A,C from relation r (Ac (r)). E 10 12

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