diketahui n (A)=50,n (B)=62,dan n (a n b) =35 tentukan n (A U B)=...

Materi Himpunan

n(A U B) = n(A) - n(A n B) + n(B) - n(A n B) + n(A n B)
n(A U B) = (50 - 35) + (62 - 35) + 35 = 15 + 62 = 77