Question

Which one of the following sets of numbers
is not like the set {64, 16, 8}?​

Answer 1

Explanation:

No set is a proper subset of itself. The empty set is a subset of every set. The empty set is a proper subset of every set except for the empty set.

How do you find a proper subset?

Subsets of a given Set

If a set contains 'n' elements, then the number of subsets of the set is 22.

If a set contains 'n' elements, then the number of proper subsets of the set is 2n - 1.

⇒ Number of proper subsets of A are 3 = 22 - 1 = 4 - 1.

In general, number of proper subsets of a given set = 2m - 1, where m is the number of elements.