Đề Kiểm Tra Online Bài Tập Hợp-Đề 7

1. Vô số.

2. \(3\).

3. \(4\).

4. \(2\).

1. \(B = \left\{ { - 1;0;4} \right\}\).

2. \(B = \left\{ {0;4} \right\}\).

3. \(B = \left\{ { - 1;\frac{1}{2};0;4} \right\}\).

4. \(B = \left\{ {0;1;4} \right\}\).

1. \(1\) .

2. \(3\).

3. \(4\).

4. \(2\) .

1. \(\left\{ {x \in N/\left| x \right| < 1} \right\}\).

2. \(\left\{ {x \in Z/6{x^2} - 7x + 1 = 0} \right\}\).

3. \(\left\{ {x \in R/{x^2} - 4x + 3 = 0} \right\}\).

4. \(\left\{ {x \in Q/{x^2} - 4x + 2 = 0} \right\}\).

1. \(2\).

2. \(3\).

3. \(5\).

4. \(4\).

1. \(P \subset P\).

2. \(\emptyset \subset P\).

3. \(P \in P\).

4. \(P \in \left\{ P \right\}\).

1. \(\left\{ {x;\emptyset } \right\}\).

2. \(\left\{ {x;y} \right\}\).

3. \(\left\{ {x;y;\emptyset } \right\}\).

4. \(\left\{ x \right\}\).

1. \(A \subset A\).

2. \(A \ne \left\{ A \right\}\).

3. \(\emptyset \subset A\).

4. \(A \in A\).

1. \(8\).

2. \(6\).

3. \(7\).

4. \({2^n}\).

1. \(A = \left\{ {x|x = \frac{1}{{{2^k}}},k \in \mathbb{Z},x \geqslant \frac{1}{8}} \right\}\) và \(B = \left\{ {\frac{1}{2};\frac{1}{4};\frac{1}{8}} \right\}\).

2. \(A = \left\{ {x \in \mathbb{Z}| - 2 < x \leqslant 3} \right\}\) và \(B = \left\{ { - 1;0;1;2;3} \right\}\).

3. \(A = \left\{ {3;9;27;81} \right\}\) và \(B = \left\{ {{3^n}|n \in \mathbb{N},1 \leqslant n \leqslant 4} \right\}\).

4. \(A = \left\{ {x \in \mathbb{N}|x < 5} \right\}\) và \(B = \left\{ {0;\;1;\;2;\;3;\;4} \right\}\).