Question

If a number of subsets of a set is 36, then the number of proper subsets of a se

Answer 1

Step-by-step explanation:

A={1,2,{3,4}}

Number of elements in A,n=3.

Total number of subsets of A=2

n

=2

3

=8.

Except for set A and null set, all other sets are proper sets.

Hence number of proper subsets =8−2=6.