30 bài tập trắc nghiệm các phép toán trên tập hợp

A \(7\)

B \(4\)

C \(10\)

D \(3\)

A \(A\backslash B = \left[ {1; - 3} \right).\)

B \(A \cup B = \left[ { - 1;3} \right].\)      

C \(A \cap B = \left\{ { - 1} \right\}.\)

D \(B\backslash A = \left[ { - 2; - 1} \right].\)

A \(C = B\backslash A.\)

B \(C = A \cap B.\)

C \(C = A \cup B.\)     

D \(C = A\backslash B.\)

A \(A \cap \emptyset  = \emptyset .\)

B \(\emptyset  \subset A.\)   

C \(A \in \left\{ A \right\}.\)

D \(A \subset A.\)

A \(\left[ { - 1;3} \right]\)                        

B \(\left( { - 1;3} \right]\)            

C \(\left( { - 1;3} \right)\)            

D \(\left\{ {0;1;2;3} \right\}\)

A \(\left( {3;4} \right)\)

B \(\left[ { - 4;4} \right]\)

C \(\left[ { - 4;\frac{1}{2}} \right)\)

D \(\left( { - \frac{1}{2};3} \right]\)

A \(7\)

B \(6\)

C \(8\)

D \(12\)

A \(A\backslash B = \left[ { - 1;2} \right].\)

B \(B\backslash A = \left[ {3;5} \right).\)

C \(A \cap B \subset \left( {2;4} \right).\)

D \(A \cup B = \left[ { - 1;5} \right).\)

A \(\left[ {5; + \infty } \right).\)

B \(\left( { - \infty ;2} \right) \cup \left[ {5; + \infty } \right).\)

C \(\left( { - \infty ;2} \right).\)

D \(\left( { - \infty ;2} \right] \cup \left( {5; + \infty } \right).\)

A \(\left( { - 2; - 1} \right].\)

B \(\left[ { - 3;2} \right)\).

C \(\left( { - 2; - 1} \right)\).

D \(\left[ { - 3; - 1} \right)\).

A \(M \cap N = \left( { - \infty ;7} \right)\)         

B \(M \cap N = \left[ { - 2;7} \right)\)       

C \(M \cap N = \left( { - 2;4} \right)\)      

D \(M \cap N = \left[ { - 2;4} \right]\)

A \(E \cap F = \left[ { - 2;6} \right]\)

B \(E \cap F = \left( { - \infty ;7} \right]\)           

C \(E \cap F = \left[ {6;7} \right]\)           

D \(E \cap F = \left( { - \infty ; - 2} \right)\)

A \(A \cup B = \left\{ {4;5} \right\}.\)

B \(A \cup B = \left\{ {1;2;3} \right\}.\)

C \(A \cup B = \left\{ {1;2;3;6} \right\}.\)

D \(A \cup B = \left\{ {1;2;3;4;5;6} \right\}.\)

A \(A \cap B = A \Leftrightarrow A \subset B\)

B \(A \cup B = A \Leftrightarrow B \subset A\)         

C \(A\backslash B = A \Leftrightarrow A \cap B = \emptyset \)            

D \(A\backslash B = A \Leftrightarrow A \cap B \ne \emptyset \)

A \(A \subset B,\)           

B \(C \subset A\)                   

C \(C \subset D\)

D Cả A, B, C đều đúng

A \(\emptyset \)                       

B \(\left\{ 1 \right\}\)                                

C \(\left\{ \emptyset  \right\}\)                               

D \(\left\{ {\emptyset ;1} \right\}\)

A \(A \cap B = \left\{ {a;b;c;d;e} \right\}\)

B \(A \cap B = \left\{ a \right\}\)

C \(A \cap B = \left\{ {a;c} \right\}\)

D \(A \cap B = \left\{ {d;e} \right\}\)

A \(\left[ { - 6;} \right.\left. 3 \right)\)

B \(\left[ {3;} \right.\left. { + \infty } \right)\)

C \(\left( {10} \right.;\left. { + \infty } \right)\)      

D \(\left[ 3 \right.;\left. {10} \right]\)

A \(\left( { - 4} \right.;\left. { - 3} \right]\)

B \(\left( {\frac{1}{2}; + \infty } \right)\)                   

C \(\left( { - 4} \right.;\left. { - 3} \right] \cup \left( {\frac{1}{2}; + \infty } \right)\)

D \(\left( { - 4} \right.;\left. { - 3} \right) \cup \left( {\frac{1}{2}; + \infty } \right)\)

A \(\left\{ {1;2;3;4;8;9;7} \right\}\)

B \(\left\{ {1;3;4;7;8;9} \right\}\)

C \(\left\{ {1;3} \right\}\)

D \(\left\{ {2;8;9;12} \right\}\)

A \((2;5]\)

B (-4; 9]

C (-5; 2]

D [-6; 2]

A \(\left( { - 2;\;2} \right]\)                          

B \(\left( { - 2;\;9} \right]\)    

C  \(\left( { - 2;\;2} \right)\)                            

D  \(\left( {2;\;5} \right]\)

A \(\left( {3;\left. 5 \right]} \right.\)

B \(\left( {1;\left. 3 \right]} \right.\)

C \(\left[ { - 2;1} \right]\)

D \(\left[ { - 2;5} \right]\)

A \(\emptyset \,\,;\,\,\left\{ 1 \right\}\,\,;\,\,\left\{ 3 \right\}\,\,;\,\,\left\{ {1;3} \right\}\)

B \(\emptyset \,\,;\,\,\left\{ 1 \right\}\,\,;\,\,\left\{ 3 \right\}\,\,;\,\,\left\{ {1;3} \right\}\,\,;\,\,\left\{ {1;3;5} \right\}\)           

C \(\left\{ 1 \right\}\,\,;\,\,\left\{ 3 \right\}\,\,;\,\,\left\{ {1;3} \right\}\)

D \(\left\{ 1 \right\}\,\,;\,\,\left\{ 3 \right\}\,\,;\,\,\left\{ {1;3} \right\}\)

A \(\left( { - 1;2} \right]\) và \(\left( { - 3; - 1} \right)\).

B \(\left( { - 1;2} \right)\) và \(\left( { - 3; - 1} \right)\).

C \(\left( { - 1;2} \right]\) và \(\left( { - 3; - 1} \right]\).

D \(\left( { - 1;2} \right)\) và \(\left( { - 3; - 1} \right]\).

A \(\left\{ {1;\;2;\;3;\;4;\;5;\;7;\;8;\;9;\;10} \right\}\)

B \(\left\{ {5;\;8;\;9} \right\}\)

C \(\left\{ {3;7} \right\}\)

D \(\left\{ {1;\;2;\;3;\;4;\;5;\;6;\;7;\;8;\;9;\;10} \right\}\)

A \(\left[ {\frac{{11}}{2}} \right.;\left. { + \infty } \right)\)

B \(\left( {\frac{2}{5}} \right.;\left. {\frac{{11}}{2}} \right]\)

C \(\left( { - 3} \right.;\left. {\frac{2}{5}} \right]\)

D \(\left( { - 3; + \infty } \right)\)

A \(7\)

B \(8\)

C \(6\)

D \(5\)

A \(4\)

B \(3\)

C \(2\)

D \(1\)

A \(m \in \left( { - \infty ; - 4} \right] \cup \left( {2; + \infty } \right)\).

B \(m \in \left[ { - 4;2} \right)\).

C \(m \in \left( { - 4;2} \right)\).

D \(m \in \left( { - 4;2} \right]\).