Cho các tập hợp: \(A = \left\{ {\left. {x \in \mathbb{R}} \right|\,\left( {{x^2} + 7x + 6} \right)\left( {{x^2} - 4} \right) = 0} \right\}\); \(B = \left\{ {x \in \mathbb{N}|\,2x \le 8} \right\}\); \(C = {\rm{\{ }}2x + 1|\,x \in \mathbb{Z};\,\,\, - 2 \le x \le 4{\rm{\} }}{\rm{.}}\) Tìm \(\left( {A \cup C} \right)\backslash B.\)
A.\((A \cup C)\backslash B = \left\{ { - 3; - 1;5;7;9} \right\}\)
B.\((A \cup C)\backslash B = \left\{ { - 6; - 3; - 2; - 1;5} \right\}\)
C.\((A \cup C)\backslash B = \left\{ { - 6; - 3; - 2; - 1;5;7;9} \right\}\)
D.\((A \cup C)\backslash B = \left\{ { - 6; - 3;5;7;9} \right\}\)
A.\((A \cup C)\backslash B = \left\{ { - 3; - 1;5;7;9} \right\}\)
B.\((A \cup C)\backslash B = \left\{ { - 6; - 3; - 2; - 1;5} \right\}\)
C.\((A \cup C)\backslash B = \left\{ { - 6; - 3; - 2; - 1;5;7;9} \right\}\)
D.\((A \cup C)\backslash B = \left\{ { - 6; - 3;5;7;9} \right\}\)
Loga
Hóa Học lớp 12
