Find the set $A \cup B$ if $A = \left\{ - 3 , - 2,0 , \frac { 1 } { 3 } , \frac { 2 } { 3 } , 6,9 \right\}$ and $B = \left\{ 0 , \frac { 1 } { 3 } , \frac { 2 } { 3 } \right\}$
A) $\left( 0 , - 2 , - 3,6,9 , \frac { 1 } { 3 } , \frac { 2 } { 3 } \right)$
B) $\left( 0 , - 2,3,6,9 , \frac { - 1 } { 3 } , \frac { 2 } { 3 } \right)$
C) $\left\{ 0,2 , - 3,6,9 , \frac { 1 } { 3 } , \frac { - 2 } { 3 } \right\}$
D) $\{ 0 , - 2 , - 3,6 , - 9 \}$
E) $\left\{ 0 , - 2 , - 3,6,9 , \frac { 2 } { 3 } \right)$

Question

Quizplus · Accepted Answer

The union of sets A and B, denoted as $A \cup B$, includes all elements from both sets without repetition. Since set B's elements are already included in set A, the union $A \cup B$ is simply set A itself.

Find the Set A∪BA \cup BA∪B If A={−3,−2,0,13,23,6,9}A = \left\{ - 3 , - 2,0 , \frac { 1 } { 3 } , \frac { 2 } { 3 } , 6,9 \right\}A={−3,−2,0,31​,32​,6,9}

Find the Set $A \cup B$ If $A = \left\{ - 3 , - 2,0 , \frac { 1 } { 3 } , \frac { 2 } { 3 } , 6,9 \right\}$