Question

if P = { x : x is an even no. between 3 and 15} Q be the set of first six multiples of 3. Then PnQ ( P intersection Q) will be


please tell​

Answer 1

Answer:

ANSWER

Given A 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∣=pq

Any 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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