Sets Relations And Functions Question 10
Question: If $A=\{1,2,3,4,5\}$, then the number of proper subsets of A is
Options:
A) 31
B) 38
C) 48
D) 54
Show Answer
Answer:
Correct Answer: A
Solution:
- [a]Note: Number of proper subsets of $ A=2^{n}-1 $
Given: $ A=\{1,2,3,4,5\} $
Here $ n=5 $
$ \therefore $
no. of proper subsets $ =2^{5}-1 $
BETA
