Jawabanmu

2014-08-15T06:09:39+07:00
A ={21,22,23,24...}
B={12,24,16,...38}}
2014-08-15T06:27:58+07:00
A. {×|× > 20, x € bil. bulat }
b. { x| 10 < x < 40, x € bil. genap}