Kak tolong kerjain no 2,pake cara,besok di kumpul
n(A) = 40
n(B) = 25
n (A u B) = 50
n ( A n B) =n (A) + n (B) – n ( A u B)
40+25-50
=65-50 =15
Jadi n (A n B) = 15
Semoga membantu!
Jawab:
N(B)=40
N(A U B )=50
= N( A U B ) + N(B)= 50 + 40 =90
MAAF KALO SALAH