A = {x € R |x<3}
B = {x € R |3 < x < 10}
A U B=
A-B =
B-A =
![A X R Xlt3B X R 3 Lt X Lt 10 A U BAB BA class=](https://ro-static.z-dn.net/files/dbc/0f4bf610b9910c80ae5cac324128cccc.jpg)
A= x€{0,1,2}
B= x{4,5,6,7,8,9}
AUB=0,1,2,4,5,6,7,8,9
A-B=0,1,2
B-A=4,5,6,7,8,9