Question

A= { 1,2,3,4}
B={3,4,5}
C={2,6,7,8,9}

berapa n (A), n (B), n(C), n (A n B),n(AnC) dan n (B n C)

Answer 1

N(a) = 1234=4
n(b) = 345 = 3
n(c) = 26789 = 5

n(anb) = 3
n(anc) = 2
n(bnc) = ga ada

Answer 2

N(A)=4
n(B)=3
n(C)=5
A n B=3,4
n(A n B)=2
A n C=2
n(A n C)=1
n(B n C)=0