Diketauhi: A:(1,2,3,4,5) B:(2,4,6,8) C:(2,3,5,7,11) tentukan: a.anb b.ane c.bne d.aub e.aue tolong dijawab!!!! please mau dikumpul besok!!

a.anb:(2,4)
b.(2,3,5)
c.(2)
d.(1,3,5,6,8)
e.(1,4,7,11)

a. A n B = {2, 4}
b. A n C = {2, 3, 5}
c. B n C = {2}
d. A u B = {1, 2, 3, 4, 5, 6, 8}
e. A u C = {1, 2, 3, 4, 5, 7, 11}
itu soalnya seharunya C ya bukan E. kan nggk ada himpunan E.