Question Detail
Question
If P(A) is the power set of A = {1,2}, which of the following is not in P(A)?
Correct Answer
Option D is the correct answer.
Detailed Explanation
The power set of {1,2} contains all subsets of {1,2}: ∅, {1}, {2}, {1,2}. {1,2,3} is not a subset of {1,2}.
Hint
The notes indicate answer D.