Question 1051636: 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={2,4,5,8,14,15,18}
Set B={2,3,4,6,9,11,15,16,17,19}
The number of elements in the set n(A∪B) =
The number of elements in the set n(A∩B) =
Answer by ikleyn(52802)   (Show Source):
You can put this solution on YOUR website! .
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={2,4,5,8,14,15,18}
Set B={2,3,4,6,9,11,15,16,17,19}
The number of elements in the set n(A∪B) = <<<---=== It is the two-step problem.
As the first step, write the list of elements in the set A U B.
As the second step, count how many items are in your list.
The number of elements in the set n(A∩B) = <<<---=== It is the two-step problem.
As the first step, write the list of elements in the set A n B.
As the second step, count how many items are in your list.
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