n(aub)=45,n( a)=27,n(aub)=10,n(b)=...
Matematika
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Pertanyaan
n(aub)=45,n( a)=27,n(aub)=10,n(b)=...
1 Jawaban
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1. Jawaban hakimium
Himpunan
Matematika VII
n(A U B) = 45
n(A) = 27
n(A /\ B) = 10
n(B) = ?
n(A U B) = n(A) + n(B) - n(A /\ B)
45 = 27 + n(B) - 10
n(B) = 45 - 27 + 10
Jadi n(B) = 28