A={X∈R/0<x<2) B={X∈ R/-3<x<1}} determine o conjunto (AUB)- (A B)
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A={X∈IR/0<x<2) => ---------------------0+++++++++2-----------------
B={X∈ IR/-3<x<1}} => -----3++++++++++++1---------------------------
(AUB) =>{X∈ IR/-3<x<2} => -----3+++++++++++++++++2-----------------
(A-B) => {X∈ IR/1<x<2} => -------------------------------1++++2-----------------
(AUB)- (A-B) => {X∈ IR/-3<x<1} -----3++++++++++++1---------------------------
B={X∈ IR/-3<x<1}} => -----3++++++++++++1---------------------------
(AUB) =>{X∈ IR/-3<x<2} => -----3+++++++++++++++++2-----------------
(A-B) => {X∈ IR/1<x<2} => -------------------------------1++++2-----------------
(AUB)- (A-B) => {X∈ IR/-3<x<1} -----3++++++++++++1---------------------------
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