Đề thi HK2 môn Toán lớp 10 THPT Chuyên ĐHSP Hà Nộ...

A \(\overrightarrow u  = \left( {3;\,1} \right)\).

B \(\overrightarrow u  = \left( { - 5;\,\,2} \right)\).

C \(\overrightarrow u  = \left( {1;\,3} \right).\)

D \(\overrightarrow u  = \left( {2;\, - 5} \right).\)

A \(5\).

B \(6.\)     

C \(3.\)     

D \(2.\).

A \(\sin \alpha  < 0,\cos \alpha  < 0.\)

B \(\sin \alpha  < 0,\cos \alpha  > 0.\)                               

C \(\sin \alpha  > 0,\cos \alpha  < 0.\)

D \(\sin \alpha  > 0,\cos \alpha  > 0.\)

A \(\left( { - \infty ;1} \right) \cap \left( {6; + \infty } \right).\)

B \(\left( { - 6, - 1} \right).\)        

C \(\left( {1;6} \right).\)  

D \(\left( { - \infty ;1} \right) \cup \left( {6; + \infty } \right).\)

A \(\cos \left( {\alpha  - \frac{\pi }{3}} \right).\)

B \(\sin \left( {\alpha  + \frac{\pi }{3}} \right).\)          

C \(\cos \left( {\alpha  + \frac{\pi }{3}} \right).\)

D \(\sin \left( {\alpha  - \frac{\pi }{3}} \right).\)

A \( - \sin \alpha .\)          

B \(\sin \alpha .\)

C \(\cos \alpha .\)

D \( - \cos \alpha .\)

A \(\left( {2;\,3} \right).\)

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

C \(\left( { - 2;\,3} \right).\)

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

A \(\left( { - \frac{b}{a}; + \infty } \right).\)

B \(\left( { - \infty ;\frac{b}{a}} \right).\)                       

C \(\left( { - \infty ; - \frac{b}{a}} \right).\)

D \(\left( {\frac{b}{a}; + \infty } \right).\)

A \(\overrightarrow n  = \left( {1; - 2} \right).\)

B \(\overrightarrow n  = \left( {2; - 4} \right).\)        

C \(\overrightarrow n  = \left( {2;4} \right).\)

D \(\overrightarrow n  = \left( { - 1;2} \right).\)

A \( - \sin \alpha .\)

B \(\sin \alpha .\)  

C \(\cos \alpha .\)

D \( - \cos \alpha .\)

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

B \(\left( { - 3;5} \right).\)           

C \(\left( {3;5} \right).\)

D \(\left( { - 5;3} \right).\)

A \(39.\)

B \(93.\)   

C \(639.\)

D \(35.\)

A \( - 2 < m < 1\)

B \( - 1 < m < 2\)

C \( 1 < m < 2\)

D \( - 2 < m <  - 1\)

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

B \(\left( { - \infty ; - 5} \right).\)

C \(\left( { - \infty ; - 3} \right).\)

D \(\left( {0; + \infty } \right).\)

A \(\frac{{4\sqrt 2  + \sqrt 5 }}{9}\)

B \(\frac{{4\sqrt 2  + \sqrt 5 }}{3}\)

C \(\frac{{4\sqrt 2  - \sqrt 5 }}{9}\)

D \(\frac{{\sqrt 2  - \sqrt 5 }}{3}\)

A \(3x - 2y + 7 = 0\)

B \(3x - 2y + 5 = 0\)

C \(3x - 2y + 3 = 0\)

D \(3x - 2y + 1 = 0\)

A \(d\left( {I;\Delta } \right) = \sqrt 2 \,\,;\,\,{\left( {x - 2} \right)^2} + {\left( {y - 3} \right)^2} = 2\)

B \(d\left( {I;\Delta } \right) = 2\,\,;\,\,{\left( {x + 2} \right)^2} + {\left( {y + 3} \right)^2} = 4\)

C \(d\left( {I;\Delta } \right) = 2\,\,;\,\,{\left( {x - 2} \right)^2} + {\left( {y - 3} \right)^2} = 4\)

D \(d\left( {I;\Delta } \right) = \sqrt 2 \,\,;\,\,{\left( {x + 2} \right)^2} + {\left( {y + 3} \right)^2} = 2\)

A \(m =  - 1\)

B \(m = 0\)

C \(m = 1\)

D \(m = 2\)

A \( - \frac{7}{9}\)

B \(\frac{7}{9}\)

C \(\frac{{ - 11}}{9}\)

D \(\frac{{11}}{9}\)