\(C = \left[ {3; + \infty } \right)\backslash \left\{ 5 \right\}\)
A.\( \Rightarrow {C_\mathbb{R}}C = \left( { - \infty ;3} \right) \cup \left\{ 5 \right\}\)
B.\( \Rightarrow {C_\mathbb{R}}C = \left( { - \infty ;3} \right)\)
C.\( \Rightarrow {C_\mathbb{R}}C = \left( { 3;+ \infty } \right)\)
D.\( \Rightarrow {C_\mathbb{R}}C = \left\{ 5 \right\}\)
A.\( \Rightarrow {C_\mathbb{R}}C = \left( { - \infty ;3} \right) \cup \left\{ 5 \right\}\)
B.\( \Rightarrow {C_\mathbb{R}}C = \left( { - \infty ;3} \right)\)
C.\( \Rightarrow {C_\mathbb{R}}C = \left( { 3;+ \infty } \right)\)
D.\( \Rightarrow {C_\mathbb{R}}C = \left\{ 5 \right\}\)
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Hóa Học lớp 12
