12. Let B be a subset of A. Let |A| = n and |B| = k. What is the number of subsets of A whose intersection with B has 3 elements?
12. Let B be a subset of A. Let |A| = n and |B| = k. What is the number of subsets of A whose intersection with B has 3 elements?
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.CR: Chapter Review
Problem 2CC
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