Jika n(P) = 100,n(Q =120,n(P U Q ) =80,maka nilai n(P n Q adalah...... A.120. B.130. C.140. D.150
Matematika
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Pertanyaan
Jika n(P) = 100,n(Q =120,n(P U Q ) =80,maka nilai n(P n Q adalah...... A.120. B.130. C.140. D.150
1 Jawaban
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1. Jawaban Anonyme
Bab Himpunan
Matematika SMP Kelas VII
n(P ∪ Q) = n(P) + n(Q) - n(P∩Q) = 80
100 + 120 - n(P ∩ Q) = 80
n(P ∩ Q) = 220 - 80
n(P ∩ Q) = 140
jawabannya C