Question

Please solve it fast. Topic: Sets
The number of proper subsets in a set containing 3 elements is _______?

Answer 1

Step-by-step explanation:

Given that:-

The number of elements in the set=3

we know that if a set having n elements then it has 2^n -1 proper subsets

so , The number of proper subsets of the given set

=>2³-1

=>8-1

=>7

The number of proper subsets of the given set is 7