Using inclusion-exclusion find the number of ways to put 9 pairs of people in a line of 18 so that no pair is standing side-by-side. Make sure to include: (1) The universe set X. (2) The excluded subsets Ai. (3) The method used to count the intersections of excluded subsets.
Using inclusion-exclusion find the number of ways to put 9 pairs of people in a line of 18 so that no pair is standing side-by-side. Make sure to include: (1) The universe set X. (2) The excluded subsets Ai. (3) The method used to count the intersections of excluded subsets.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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![Using inclusion-exclusion find the number of ways to put 9 pairs of people in a
line of 18 so that no pair is standing side-by-side.
Make sure to include:
(1) The universe set X.
(2) The excluded subsets Ai.
(3) The method used to count the intersections of
excluded subsets.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa456c26d-f3f5-4cc8-a56d-d85bf1cbb196%2F512d5843-ea15-44ea-8c4a-47114c0922a9%2F1mkum5e_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Using inclusion-exclusion find the number of ways to put 9 pairs of people in a
line of 18 so that no pair is standing side-by-side.
Make sure to include:
(1) The universe set X.
(2) The excluded subsets Ai.
(3) The method used to count the intersections of
excluded subsets.
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