himpunan (p-q) U (q-p) bantuin kak please pakek cara

P = {2,3,4,5}
Q = {3,4,5,6,7,8}

Himpunan P-Q = {2}
Himpunan Q-P = {6,7,8}

Maka gabungannya {2,6,7,8}
Jawab : opsi D

p-q =2,3,4,5-3,4,5,6,7,8= 2,6,7,8
q-p = 3,4,5,6,7,8 - 2,3,4,5 =2,6,7,8
U = gabungan
2,6,7,8 U 2,6,7,8 = 2,6,7,8
JAWABAN D.2,6,7,8