Jawab:

Penjelasan dengan langkah-langkah:

1.

A = { 1,2,3,4,5,6}

B = {1,3,5,7,9}

a. A n B = {1,3,5}

b. A u B = { 1,2,3,4,5,6,7,9}. jadi simbolnya bukan C

2.

a. A- B = {8}

b. B - A = { 3,6,12}

3.

A = {2,3,5,7,11}

Ac = {0,1,4,6,8,9,10,12,13}

B = {0,2,4,6,8,10,12}

Bc = {1,3,5,7,9,11,13}

a. Ac n B = {0,4,6,8,10,12}

b. A u Bc = {1,2,3,5,7,9,11,13}

4.

S = {1,2,3,4,5,6,7,8,9}

A = {1,2,3,4}

B = {2,3,5,7}

(AnB) = {2,3}

(A n B) c = {1,4,5,6,7,8,9}

5.

n(A) = jumlah anak siswa yang minum teh

n(B) =  jumlah anak siswa yang minum susu

n(S) - n (AuB)c = n(A) + n(B) -n (AnB)

30 - 5  = 18 +n(B)  -10

25 = 8 +n(B)

n(B) = 25 - 8 = 17