Question

If the set A has 3 elements and the set B = {3, 4, 5}, then find the number of elements in (A×B).
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Answer 1

Answer:

(A×B) = {3}

Step-by-step explanation:

set A consist 3 and B consist 3, 4, 5.

to find their intersections, we have to

find the common element

which is 3

therefore, answer is 3

Answer 2

Answer:

n(A)×n(B)=n(A×B)

3×3=9