Question

List all of the subsets of the following set: {-2, 2}

A.) {2};{-2};{-2,2}
B.) {};{-2};{2};{-2,2};{2,-2}
C.) {};{-2};{2};{-2,2}
D.) {};{2};{-2};{2,2};{-2,-2}

I think it's B, but I'm not 100% on that. This topic of sets is really confusing for me.

Answer 1

B is the only one that includes all the possibilities

Answer 2

I thought so. The correct answer was actually C, but thank you for your help!

Answer 3

A set of n elements has only 2^n subsets.

B has a duplicate set listed. The order of elements in a set is not important.

C is the answer.