3. Let A = {1,2,3,...,9}. (a) How many subsets of A are there? That is, find |P(A)|. Explain. (b) How many subsets of A contain exactly 5 elements? Explain. (c) How many subsets of A contain only even numbers? Explain. (d) How many subsets of A contain an even number of elements? Explain.
3. Let A = {1,2,3,...,9}. (a) How many subsets of A are there? That is, find |P(A)|. Explain. (b) How many subsets of A contain exactly 5 elements? Explain. (c) How many subsets of A contain only even numbers? Explain. (d) How many subsets of A contain an even number of elements? Explain.
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 5E
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i need answer of all 4 parts otherwise i will reject your answer. its not a tuff question.
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