SOLUTION: If
n(A) = 66, n(B) = 15, and n(A ∩ B) = 6, find n(A ∪ B).
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Question 1113480: If
n(A) = 66, n(B) = 15, and n(A ∩ B) = 6, find n(A ∪ B).
Found 2 solutions by rothauserc, ikleyn:
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
66 + 15 - 6 = 75
:
n(AUB) = 75
:
Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
.
Regarding this problem, see the lesson
- Counting elements in sub-sets of a given finite set
in this site.
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