Question

Consider the set {2, 1, 3, 4}. How many subsets could be formed from this set?

Answer 1

16

Explanation:

{} {1,2,3,4}{1}{2}{3}{4}{1,2}{1,3}{1,4}{2,3}{2,4}{3,4}{1,2,3}{1,2,4}{1,3,4}{2,3,4}