Diketahui P = {bilangan cacah kuran dari8}, Q = {bilangan prima kurang dari 10}, dan R = {faktor dari 20}. Tentukanlah :

Dik :
P = {0,1,2,3,4,5,6,7}
Q = {2,3,5,7}
R = {1,2,4,5,10,20}
Dit :
a. P U Q
b. Q U P
c. Q U R
d. (P U Q) U R
e. P U (Q U R)
Jawab :
a. P U Q = {0,1,2,3,4,5,6,7}
b. Q U P = {0,1,2,3,4,5,6,7}
c. Q U R = {1,2,3,4,5,7,10,20}
d. (P U Q) U R = {0,1,2,3,4,5,6,7,10,20}
e. P U (Q U R) = {0,1,2,3,4,5,6,7,10,20}