If n(A) = 10 and B is a void set then n(AxB) = ?
10
1
2
None of these
As wehave learnt,
No. of elements in cartesian product -
If A and b are finite sets, then n(AXB)=n(A).n(B)
-
Since
n(AxB) = n(A) x n(B) = 10 x 0 = 0
Option 1)
10
Option 2)
1
Option 3)
2
Option 4)
None of these
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