Guest Session: 1 Question Remaining.
Create Account
to save progress.
Login
Set Theory
hard
0:00.0
How many proper subsets does a set of
n
n
n
elements have?
A
2
n
2^n
2
n
B
2
n
−
1
2^n - 1
2
n
−
1
C
2
n
−
1
2^{n-1}
2
n
−
1
D
n
n
n
Submit Answer