(13) if A and B are two sets having 3 eliments in common if n(A) = 5 , n(B) =4 - Maths -

Question

(13) if A and B are two sets having 3 eliments in common if n(A)
= 5 , n(B) =4 find n(A * B) and n { ( A * B) intersection (B
*A)}

Ajanta Trivedi · Accepted Answer

if A and B are two sets having 3 elements in common if n(A) = 5 ,
n(B) =4 find n(A * B) and

n { ( A * B) intersection (B *A)}
the elements in the ordered pair A*B=5*4=20
n(A*B)=20
since three elements are common in the set A and B,
therefore the number of common elements in the ordered pair set
is 3*3=9
n((A*B)âˆ©(B*A))=9

(13) if A and B are two sets having 3 eliments in common if n(A) = 5 , n(B) =4 find n(A * B) and n { ( A * B) intersection (B *A)}