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chels4278
chels4278
21.02.2020 • 
Mathematics

Here are two relations: R(A,B): {(0, 1), (2,3), (0, 1), (2,4), (3,4)} S(B, C): {(0, 1), (2, 4), (2, 5), (3, 4), (0, 2), (3, 4)} Compute the following: a) 11'A+B.A2,B2(R); b) 71'B+l,C-l(S); c) TB,A(R); d) TB,c(S); e) J(R); f) J(S); g) /A, SUM(Bj(R); h) IB.AVG(C)(S'); ! i) !A(R); ! j) IA,MAX(C)(R t:><1 S); k) R S; I) R S; m) R S; n) R S.

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