Câu hỏi trắc nghiệm (10 câu):
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- A. \(\overrightarrow {{u_1}} = \left( {3;2} \right)\)
- B. \(\overrightarrow {{u_2}} = \left( { - 2;3} \right)\)
- C. \(\overrightarrow {{u_3}} = \left( {6; - 9} \right)\)
- D. \(\overrightarrow {{u_4}} = \left( { - 4;6} \right)\)
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- A. \({M_1}\left( { - 2; 5} \right)\)
- B. \({M_1}\left( {3; 1} \right)\)
- C. \({M_1}\left( { 2; -3} \right)\)
- D. \({M_1}\left( { 5; -2} \right)\)
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- A. \(m \ne 2.\)
- B. \(m \ne \pm 1.\)
- C. \(m \ne 1.\)
- D. \(m \ne - 1.\)
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- A. \(3x - 4y + 8 = 0\)
- B. \(3x - 4y - 11 = 0\)
- C. \(- 6x + 8y + 11 = 0\)
- D. \(8x + 6y + 13 = 0\)
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- A. \(4x - y - 3 = 0;2x - 3y + 1 = 0\)
- B. \(4x - y - 3 = 0;2x + 3y + 1 = 0\)
- C. \(4x + y - 3 = 0;2x - 3y + 1 = 0\)
- D. \(x - y = 0;2x - 3y + 1 = 0\)
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- A. \(I\left( {2; - 8} \right),\;R = 2\sqrt 2 \)
- B. \(I\left( {1; - 4} \right),\;R = 3\)
- C. \(I\left( { - 1;4} \right),R = 3\)
- D. \(I\left( {1; - 4} \right),R = 2\sqrt 2 \)
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- A. \(-{\rm{ }}4x{\rm{ }} + {\rm{ }}3y{\rm{ }}-{\rm{ }}7{\rm{ }} = {\rm{ }}0\)
- B. \(4x{\rm{ }} + {\rm{ }}3y{\rm{ }} + {\rm{ }}1 = {\rm{ }}0\)
- C. \(3x{\rm{ }} + {\rm{ }}4y{\rm{ }}-{\rm{ }}1{\rm{ }} = {\rm{ }}0\)
- D. \(3x{\rm{ }}-{\rm{ }}4y{\rm{ }} + {\rm{ }}7{\rm{ }} = {\rm{ }}0\)
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- A. \({x^2} + {y^2} - 2x + 4y - 15 = 0\)
- B. \({x^2} + {y^2} + 2x - 4y - 15 = 0\)
- C. \({x^2} + {y^2} + x - 2y - 15 = 0\)
- D. \({x^2} + {y^2} - x + 2y - 20 = 0\)
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- A. 0
- B. 1
- C. 2
- D. 3
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- A. \(\frac{1}{2}\)
- B. -2
- C. 2
- D. -1
