C-01-Q082: If $A$ and $B$ are disjoint finite sets, then $n(A \cup B)$ = ?

C-01-Q082: If $A$ and $B$ are disjoint finite sets, then $n(A \cup B)$ = ? | প্রশ্ন করি

If AAA and BBB are disjoint finite sets, then n(A∪B)n(A \cup B)n(A∪B) = ?