Answer:
Total Proper Subsets = 2ⁿ - 1 = 2³ -1 =8-1 =7
Explanation:
Basically the formula for,
No of subsets = 2ⁿ
Where n is number of elements in a set. As one subset is improper which is equal to the set itself so we have to find proper subsets which are = 2ⁿ - 1.