Write down all the subsets of the following set: $\{1, 2, 3\}$.
(N/A) The number of subsets of a set with $n$ elements is given by $2^n$. For the set $\{1, 2, 3\}$,$n = 3$,so there are $2^3 = 8$ subsets.
These subsets are: $\varnothing, \{1\}, \{2\}, \{3\}, \{1, 2\}, \{2, 3\}, \{1, 3\}, \{1, 2, 3\}$.
These subsets are: $\varnothing, \{1\}, \{2\}, \{3\}, \{1, 2\}, \{2, 3\}, \{1, 3\}, \{1, 2, 3\}$.
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