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Given u: = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}
A. Determine each of the given sets.
1. A is a set of even numbers
2. D is a set of even numbers greater than 10
B. Give the cardinality of each set
3. n(A)
4. n(D)
C. How many subsets are there in each set?
5. A
6. D
D. Find the following
7. A∪D
8. D∩A
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Answers & Comments
Answer:
A.
1. A={2,4,6,8,10,12,14,16,18,20}
2. D={12,14,16,18,20}
B.
3.n(A)= 10
4.n(D)=5
C.
5. A=19
6. D=9
D.
7. AUD={2,4,6,8,10,12,14,16,18,20}
8.={12,14,16,18,20}
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