Question

write the power set of {a, {1,2}}​

Answer 1

Answer:

Step-by-step explanation:

For example, the power set of a set with three elements, has: C(3, 0) = 1 subset with 0 elements (the empty subset), ... C(3, 2) = 3 subsets with 2 elements (the complements of the singleton subsets), C(3, 3) = 1 subset with 3 elements (the original set itself).

Answer 2

Answer:

{} , {a}, {1, 2}, {a, {1, 2}}