Let S = {1,2,3,4}. The total numbers of unordered pair of disjoint subsets of S is equal to:
A. 25
B. 34
C. 42
D. 41.
Answer:D
Let S = {1,2,3,4}. The total numbers of unordered pair of disjoint subsets of S is equal to:
A. 25 B. 34 C. 42 D. 41.