Question

اذا كانت    A equals open curly brackets 1 space comma space 2 space comma space 3 close curly brackets space space space comma space space B equals open curly brackets 2 space comma space 4 space comma space 5 close curly brackets    فان      A intersection B equals
right to left B
right to left A
open curly brackets space 2 space close curly brackets
right to left empty set

Answer 1

{2}