Mathematics, 30.07.2019 19:20, ari313

Let ss be the universal set, where:
s={1,2,,19,20}s={1,2,,19,20}
let sets aa and bb be subsets of ss, where:
set a={1,2,4,5,8,9,11,12,14,15,17,18,19 }a={1,2,4,5,8,9,11,12,14,15,17,18,1 9}
set b={2,3,8,9,12,18,19}b={2,3,8,9,12,1 8,19}
find the following:
list the elements in the set (a∪ba∪b):
(a∪b)(a∪b) = { }
enter the elements as a list, separated by commas. if the result is the empty set, enter dne
list the elements in the set (a∩ba∩b):
(a∩b)(a∩b) = { }
enter the elements as a list, separated by commas. if the result is the empty set, enter dne
you may want to draw a venn diagram to answer this question.

Answers: 2

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Let ss be the universal set, where:
s={1,2,,19,20}s={1,2,,19,20}
let sets aa and bb be...