How many ways are there to select two subsets A and B of {1, 2,..., n} such that A and B are {\em not} disjoint. Here we regard the two pairs of subsets (A, B) and (B, A) as different?
How many ways are there to select two subsets A and B of {1, 2,..., n} such that A and B are {\em not} disjoint. Here we regard the two pairs of subsets (A, B) and (B, A) as different?
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 46SE: How many ways can a committee of 3 freshmen and 4 juniors be formed from a group of 8 freshmen and...
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Transcribed Image Text:How many ways are there to select two subsets A and B of {1,2,..., n} such that A and B are {\em not} disjoint.
Here we regard the two pairs of subsets (A, B) and (B, A) as different?
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