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- Can someone help me with this, If n(A) = 5 and n(B) = 7 then n(BxA) = ?
If n(A) = 5 and n(B) = 7 then n(BxA) = ?
- Option 1)
1.4
- Option 2)
35
- Option 3)
7
- Option 4)
5
Answers (1)
As we have learnt,
No. of elements in cartesian product -
If A and b are finite sets, then n(AXB)=n(A).n(B)
-
n(AxB) = n(A) x n(B)
= 7 x 5 = 35
Option 1)
1.4
Option 2)
35
Option 3)
7
Option 4)
5
View full answer
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