Question

Se A= {x ∈ R/ 0 < x < 2} e B= {x ∈ R/ -3 ≤ x ≤ 1}, então o conjunto (A ∪ B) – (A ∩ B) é:

Answer 1

$A=\{x\in R/0\ \textless \ x\ \textless \ 2\} \mapsto A=\{1\} \\ \\ B=\{x\in R/-3 \leq x \leq 1\} \mapsto B=\{-3,-2,-1,0,1\} \\ \\ \\ (A\bigcup B)-(A\bigcap B)= \\ \\ \{-3,-2,-1,0,1\}-\{1\}=\{-3,-2,-1,0\}$