Question

If A and B are two disjointed set with n(A) = 4 and n(B) = 2 then?!! n(A-B)

Answer 1

(4,2) I hope it is right

Answer 2

The intersection of two disjoint sets is done when there is no element in common in the given sets.

It means that their intersection set is a null set or an empty set.

For example: Let A= {a,b,c,d} and B ={l,m,np}

∴A∩B=Φ

Thus, A and B are disjoint sets.