Đề thi HK2 môn Toán 10 Trường THPT Nguyễn Hữu Tiến...

A. \(\left( { - \infty ;0} \right)\)

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

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

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

A. [-1; 2]

B. (-2; 2)

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

D. [-1; 2)

A. \(\left( {\frac{1}{2};3} \right)\)

B. \(\left[ {\frac{1}{2};3} \right)\)

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

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

A. \(\sin ( - \alpha ) < 0\)

B. \(\sin (\pi  - \alpha )\)

C. \(\sin (\frac{\pi }{2} - \alpha )\)

D. \(\sin (\pi  + \alpha ) < 0\)

A. \(\sqrt 3 \)

B. 1

C. \(\sqrt 10 \)

D. 10

A. 6

B. 8

C. 12

D. 60

A. \(\left\{ \begin{array}{l}x =  - 2 + 3t\\y = 1 + 4t\end{array} \right.\)

B. \(\left\{ \begin{array}{l}x =  - 2 + t\\y = 3 - 4t\end{array} \right.\)

C. \(\left\{ \begin{array}{l}x =  - 2 + t\\y = 3 + 4t\end{array} \right.\)

D. \(\left\{ \begin{array}{l}x = 3 - 2t\\y =  - 4 + t\end{array} \right.\)

A. 5

B. \(\frac{{10}}{{\sqrt 2 }}\)

C. 10

D. \(\frac{{10}}{{\sqrt 3 }}\)

A. 4,8

B. \(\frac{1}{{10}}\)

C. \(\frac{1}{{14}}\)

D. \(\frac{{48}}{{\sqrt {14} }}\)

A. \(\sqrt 5 \)

B. 25

C. 2,5

D. 25/2

A.    \({x^2} + {\rm{ }}{y^2}{\rm{ +  }}4x{\rm{  +  }}6y{\rm{  - 8 }} = {\rm{ }}0\)

B. \({x^2} + {\rm{ }}{y^2} + {\rm{ }}4x{\rm{ }} + {\rm{ }}6y{\rm{ }} - {\rm{ }}12{\rm{ }} = {\rm{ }}0\)

C. \({x^2} + {\rm{ }}{y^2}{\rm{ -  }}4x{\rm{  -  }}6y{\rm{  - 8 }} = {\rm{ }}0\)

D. \({x^2} + {\rm{ }}{y^2}{\rm{ -  }}4x{\rm{  -  }}6y{\rm{  + 8 }} = {\rm{ }}0\)

A. \(\left\{ \begin{array}{l}x = 1 + t\\y =  - t\end{array} \right.\)

B. \(\left\{ \begin{array}{l}x = 1 + t\\y = 6\end{array} \right.\)

C. \(\left\{ \begin{array}{l}x = 1 + t\\y = t\end{array} \right.\)

D. \(\left\{ \begin{array}{l}x = 1 + t\\y =  - 1\end{array} \right.\)

A. \(\sin \left( {a + \frac{\pi }{6}} \right) = \sin {\rm{a}} + \frac{1}{2}\)

B. \(\sin \left( {a + \frac{\pi }{6}} \right) = \frac{{\sqrt 3 }}{2}\sin {\rm{a}} + \frac{1}{2}\cos a\)

C. \(\sin \left( {a + \frac{\pi }{6}} \right) = \frac{{\sqrt 3 }}{2}\sin {\rm{a - }}\frac{1}{2}\cos a\)

D. \(\sin \left( {a + \frac{\pi }{6}} \right) = \frac{1}{2}\sin {\rm{a - }}\frac{{\sqrt 3 }}{2}\cos a\)

A. 3x - 4y + 14 = 0

B. 3x + 4y - 2 = 0

C. 4x - 3y + 14 = 0

D. 3x - 4y - 14 = 0

A. \(\left[ \begin{array}{l}m > 2\\m < 3\end{array} \right.\)

B. 2 < m <3

C. 2 ≤ m ≤ 3

D. \(\left[ \begin{array}{l}m \ge 2\\m \le 3\end{array} \right.\)

A. (0; 28)

B. \(\left( { - \infty ;0} \right) \cup \left( {28; + \infty } \right)\)

C. \(\left( { - \infty ;0} \right] \cup \left[ {28; + \infty } \right)\)

D. [0; 28]

A. \(f\left( x \right) = \left( {x - 2} \right)\left( {{x^2} + 4x + 3} \right)\)

B. \(f\left( x \right) = \left( {x - 1} \right)\left( { - {x^2} + 5x - 6} \right)\)

C. \(f\left( x \right) = \left( {x - 1} \right)\left( {3 - x} \right)\left( {2 - x} \right)\)

D. \(f\left( x \right) = \left( {3 - x} \right)\left( {{x^2} - 3x + 2} \right)\)

A. [-3; 4]

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

C. \(\left[ {4; + \infty } \right)\)

D. (-3; 4)