tolong no. 4 yg c. dan d.

c. 1,2,3,4,5,7,10,20
d. 0,1,2,3,4,5,6,7,10,20

semoga membantu

P = 0, 1, 2, 3, 4, 5, 6, 7
Q = 2, 3, 5, 7
R = 1, 2, 4, 5, 10, 20

4) C. ) ( p u q ) u r
p u q = 0, 1, 2, 3, 4, 5, 6, 7
u r = 0, 1, 2, 3, 4, 5, 6, 7, 10, 20

d) p u ( q u r )
q u r = 1, 2, 3, 4, 5, 7, 10, 20
u p = 0, 1, 2, 3, 4, 5, 6, 7, 10, 20