diketahui n(A) =35,n(B) =29,dan n(AuB)=50.Tentukan n(AnB)
Matematika
Monica0511
Pertanyaan
diketahui n(A) =35,n(B) =29,dan n(AuB)=50.Tentukan n(AnB)
1 Jawaban
-
1. Jawaban klp
n(A irisan B) = x
<=> 35-x+x+29-x=50
<=> 64-x=50
<=> -x=50-64
<=> -x= -14
<=> x= -14/-1
<=> x= 14