Question

A={x| x € n 8}=
B={x| x €n 3 = x = 9}
C = {x | x € n 5= x = 12.

Answer 1

Răspuns:

A={1,2,3,4,5,6,7,8

B={3,4,5,6,7,8,9]

C={5,6,7,8,8,9,10,11,12}