Question

If a sample S = {1, 2}, the number of all possible sub-sets are:​

Answer 1

Answer:

Positive like terms, 12,21 etc, I thing so.

Answer 2

Answer:

{1} , {2} , {1,2} , {2,1} thia will be the answer as it will selecected indiviually also and combine also but in a different way too...