Di ketahui n (A) = 48, n(B) = 42 dan n (AΠB) = 38 tentukan n (A u B)
N(A u B) = n (A) + n (B) – n (A n B)
n(A u B) = 48 + 42 – 38
= 52
Di ketahui n (A) = 48, n(B) = 42 dan n (AΠB) = 38 tentukan n (A u B)
N(A u B) = n (A) + n (B) – n (A n B)
n(A u B) = 48 + 42 – 38
= 52