Let \( S=\{1,2,3,4\} \). The total number of unordered pairs of dis... VIDEO
Let \( S=\{1,2,3,4\} \). The total number of unordered pairs of disjoint subsets of \( S \) is equal to
(A) 25
(B) 34
(C) 42
(D) 41
[JEE 2010, 5]
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