Question

if there are m element inA,n element in B then num of relation A to B is ??​

Answer 1

Step-by-step explanation:

Given :n(A)=m Relation in a set A is subset of

A×A For Number of subset of A We have

n(A×A)=n(A)×n(A)=m

2

∴ Number of subset of A×A=2

m

2

every subset of A×A is a relation

∴ Number of relations in A is 2

m

2

=2

m×m