Tlg secepatnya no 1&2

1. a. A= {1,2,3,4,5,6,7,8,9}
b. B= {2,4,6,8,10,12,14,16,18}
c. C= {2}
d. D= {1,2,3,4,5,6,7,8,9}
e. E= {-2,-1,0,1,23,4,5,6,7,8,9,10,11,12}
f. F= {0,1,2,3,4,5,6,7,8,9}