Urijah Zhang

2022-11-27

A set X with cardinality X has how many elements in its power set (the set of all subsets of a set)?
a. $|x{|}^{2}$
b. $|X×X|$
c. ${2}^{|x|}$
d. $|X\cup X|$

Cale Terry

Expert

The correct answer is c. ${2}^{|x|}$