Question

1) a x b -a x c =8\3 si b-c= 2,(6), atunci a ...
2) M = {1,2,3,4} si N={2,5,6,8,9} ,M U N

Answer 1

1) a x (b-c) = 8/3
a x 24/9 = 8/3
a= 8/3 x 9/24
a=8/3 x 3/8
a=1

2)
M U N ={1,2,3,4,5,6,8,9}