Question

If n(A×B) ={1, 3} then n(B) is ​

Answer 1

Answer:

n(B) = 3

Step-by-step explanation:

if cardinal no multiplication in both the sets is 6 and cardinal no of set a is given 2 as the element in set are only 2 given 1 and 3

therefore in b it would be

6/2 =3

the cardinal no of set b is 3 or n(B) =3