👤

find U_B
A.{0,11,12,13,14,15,16,17,18,19}
B.{0,11,12,13,14,15,16,17,18,19,20}
C.{11,12,13,14,15,16,17,18,19}
D.{11,12,13,14,15,16,17,18,19,20}


Sagot :

Answer:

haha hmm I don't know hehe sorry