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Write the complement of a and u if u is {c,a,t,,a,r,a,c,t}and a is {r,a,t} .findA' |
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Answer» and B are two SETS with NUMBER of elements p and q respectively.The cartesian PRODUCT of A and B=A×B={(a,b):(a∈A) and (b∈B)}Number of elements in A×B=∣A×B∣=∣A∣.∣B∣=pqAny relation from A to B is a subset of A×B. Hence number of relations from A to B is the number of subsets of A×B=2 ∣A×B∣ =2 PQ |
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