Question

If n(A) = 5, n(B) = 4, find n(A × B)

Answer 1

Answer:

n(20)

Step-by-step explanation:

If n(A) = 5, n(B) = 4, then n(A × B)

=n(5*4)

=n(20)

Answer 2

$\underline{ \sf \fcolorbox{red}{pink}{ \huge{Solution :)}}}$

We know that ,

$\sf \large{ \fbox{n(X × Y) = n(X) × n(Y)</p><p>}}$

So ,

n(A × B) = 5 × 4

n(A × B) = 20

Hence , the n(A × B) = 20

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