Question 1051876:
Hello , Are my answers correct?
Let S be the universal set, where:
S ={1,2,3,...,18,19,20}
Let sets A and B be subsets of S, where:
Set A= {4,7,8,9,10,12,13,18}
Set B ={1,2,4,5,6,9,10,11,12,14,17,19,20}
My answer is A={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
B={4,9,10,12}
Answer by ikleyn(52781) (Show Source):
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