Question

If A = { 1, 2, 3, 4, 5), then the number of proper subset of A is
(a) 120
(b) 30
(c) 31
(d) 32​

Answer 1

Answer:

a)120 answer is correct

Answer 2

Step-by-step explanation:

The number of proper subsets of any set is given by the formula

2^n−1

where n is the number of elements in the set.

Here,

n = 5

∴ Number of proper subsets of A =

2^5−1=31

right option will be'c'

mark it brainliest answer

have a nice day