List all subsets of the given set. Identify any of the subsets that are improper. $$\{ 4,8,9 \}$$
A) $\varnothing , \{ 4 \} , \{ 8 \} , \{ 9 \} \{ 4,8 \} , \{ 4,9 \} , \{ 8,9 \} , \{ 4,8,9 \}$ Improper subsets: $\varnothing$
B) $\varnothing, \{ 4,8,9 \}$ Improper subsets: $\{ 4 \} , \{ 8 \} , \{ 9 \}$
C) $\varnothing , \{ 4 \} , \{ 8 \} , \{ 9 \} \{ 4,8 \} , \{ 4,9 \} , \{ 8,9 \}$ Improper subsets: $\{ 4,8,9 \}$
D) $\varnothing , \{ 4 \} , \{ 8 \} , \{ 9 \} \{ 4,8 \} , \{ 4,9 \} , \{ 8,9 \} , \{ 4,8,9 \}$ Improper subsets: $\{ 4 \} , \{ 8 \} , \{ 9 \} \{ 4,8 \} , \{ 4,9 \} , \{ 8,9 \}$
E) $\varnothing , \{ 4 \} , \{ 8 \} , \{ 9 \} \{ 4,8 \} , \{ 4,9 \} , \{ 8,9 \} , \{ 4,8,9 \}$ Improper subsets: $\{ 4,8,9 \}$

Question

Quizplus · Accepted Answer

The improper subset of a set is the set itself. The set $\{ 4,8,9 \}$ is the improper subset of itself.

List All Subsets of the Given Set {4,8,9}\{ 4,8,9 \}{4,8,9} A) ∅,{4},{8},{9}{4,8},{4,9},{8,9},{4,8,9}\varnothing , \{ 4 \} , \{ 8 \} , \{ 9 \} \{ 4,8 \} , \{ 4,9 \} , \{ 8,9 \} , \{ 4,8,9 \}∅,{4},{8},{9}{4,8},{4,9},{8,9},{4,8,9}

List All Subsets of the Given Set $\{ 4,8,9 \}$ A) $\varnothing , \{ 4 \} , \{ 8 \} , \{ 9 \} \{ 4,8 \} , \{ 4,9 \} , \{ 8,9 \} , \{ 4,8,9 \}$