csat-suneung 2005 Q27 (Discrete Mathematics)

csat-suneung · South-Korea · csat__math-science 3 marks Permutations & Arrangements Distribution of Objects into Bins/Groups
How many ordered pairs $( A , B )$ of disjoint subsets of the set $\{ 1,2,3,4,5,6 \}$ are there? [3 points]
(1) 729
(2) 720
(3) 243
(4) 64
(5) 36
How many ordered pairs $( A , B )$ of disjoint subsets of the set $\{ 1,2,3,4,5,6 \}$ are there? [3 points]\\
(1) 729\\
(2) 720\\
(3) 243\\
(4) 64\\
(5) 36