Let A and B be two sets and if n(A) = 3 and n(B) = 4 then n(A × B) = _____? - IQ786

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Let A and B be two sets and if n(A) = 3 and n(B) = 4 then n(A × B) = _____?

Let A and B be two sets and if n(A) = 3 and n(B) = 4 then n(A × B) = _____?

4

3

12

None of these

Explanation

n(A × B) = n(A) × n(B) = 3 × 4 = 12.