A) \[{{2}^{9}}\]
B) 6
C) 8
D) None of these
Correct Answer: A
Solution :
\[n(A\times A)=n(A).n(A)={{3}^{2}}=9\] So, the total number of subsets of \[A\times A\] is \[{{2}^{9}}\] and a subset of \[A\times A\] is a relation over the set A.
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