Đề thi học kì 1 môn Toán lớp 10 Trường THPT Diễn C...

A. 1

B. 2

C. 3

D. 4

A. 3

B. 1

C. 0

D. 2

A. 4

B. 5

C. 7

D. 6

A. \(\left[ { - 4; - 2} \right) \cup \left( {3;7} \right].\)

B. \(\left[ { - 4;2} \right) \cup \left( {3;7} \right).\)

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

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

A. 16

B. 14

C. 15

D. 17

A. \({\Delta _1}\) vuông góc với \({\Delta _3}\)

B. \({\Delta _1}\) vuông góc với \({\Delta _2}\)

C. \({\Delta _2}\) vuông góc với \({\Delta _3}\)

D. Không có hai đường thẳng nào vuông góc.

A. \(y = \frac{1}{2}x + \frac{5}{2}.\)

B. \(y = -\frac{1}{2}x + \frac{5}{2}.\)

C. \(y = -\frac{1}{2}x + \frac{7}{2}.\)

D. \(2y+x=6\)

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

B. \(M(-2;3)\)

C. \(M(2;-2)\)

D. \(M(-2;-2)\)

A. \(m <  - \frac{1}{2}.\)

B. \(m<-1\)

C. \(m>0\)

D. \( - 4 < m \le  - \frac{1}{2}.\)

A. \(y = {x^2} - 4x - 1.\)

B. \(y = 2{x^2} - 4x - 1.\)

C. \(y =  - 2{x^2} - 4x - 1.\)

D. \(y = 2{x^2} - 4x + 1.\)

A. \(I\left( {\frac{5}{4};\frac{{49}}{8}} \right).\)

B. \(I\left( { - \frac{5}{4};\frac{{21}}{8}} \right).\)

C. \(I\left( {\frac{5}{4}; - \frac{{49}}{8}} \right).\)

D. \(I\left( { - \frac{5}{4}; - \frac{{21}}{8}} \right).\)

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

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

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

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

A. \(y = 2{x^2} - 4x.\)

B. \(y = 2{x^2} - 8x + 4.\)

C. \(y = 2{x^2} - 8x - 4.\)

D. \(y = 2{x^2} + 8x - 12.\)

A. 0

B. 1

C. 3

D. 2

A. \(x \ne  \pm 1.\)

B. \(\left\{ \begin{array}{l}x \ne 1\\x \ne 0\end{array} \right..\)

C. \(\left\{ \begin{array}{l}x \ne  \pm 1\\x \ne 0\end{array} \right..\)

D. \(\left\{ \begin{array}{l}x \ne  - 1\\x \ne 0\end{array} \right..\)

A. \(5\left| { - x + 5} \right| = x + 2.\)

B. \(\left| {x - 5} \right| = x + 2.\)

C. \({\left( { - x + 5} \right)^2} = {\left( {5x + 10} \right)^2}.\)

D. \(5{\left( {x - 5} \right)^2} = {\left( {x + 2} \right)^2}.\)

A. \(S=5\)

B. \(S=-5\)

C. \(S=3\)

D. \(S=4\)

A. \(S = \left\{ { - 1;4} \right\}.\)

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

C. \(S = \left\{ {1;\frac{4}{3}} \right\}.\)

D. \(S = \left\{ { - 1; \pm \frac{4}{3}} \right\}.\)

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

B. \(\left\{ \begin{array}{l}x = 2\\y =  - 1\end{array} \right..\)

C. \(\left\{ \begin{array}{l}x = 2\\y = 1\end{array} \right..\)

D. \(\left\{ \begin{array}{l}x = 1\\y =  - 2\end{array} \right..\)

A. \(\left\{ \begin{array}{l}x = \frac{2}{3}\\y = 4\end{array} \right..\)

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

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

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

A. \(\overrightarrow {AB}  = \overrightarrow {CD} .\)

B. \(\overrightarrow {AO}  = \overrightarrow {OC} .\)

C. \(\overrightarrow {AD}  = \overrightarrow {CB} .\)

D. \(\overrightarrow {AC}  = \overrightarrow {BD} .\)

A. \(\overrightarrow {MA}  + \overrightarrow {MB}  = 2\overrightarrow {MI} .\)

B. \(\overrightarrow {MA}  + \overrightarrow {MB}  = \frac{1}{2}\overrightarrow {MI} .\)

C. \(\overrightarrow {MA}  + \overrightarrow {MB}  = \overrightarrow {MI} .\)

D. \(\overrightarrow {MA}  + \overrightarrow {MB}  =  - 2\overrightarrow {MI} .\)

A. \(\overrightarrow {AB}  - \overrightarrow {AC}  = \overrightarrow {BC} .\)

B. \(\overrightarrow {MA}  + \overrightarrow {BM}  = \overrightarrow {AB} .\)

C. \(\overrightarrow {MB}  - \overrightarrow {NC}  = \overrightarrow {CB} .\)

D. \(\overrightarrow {AA}  - \overrightarrow {BB}  = \overrightarrow {AB} .\)

A. \(\cos {135^0} = 3\cos {45^0}.\)

B. \(\cos {135^0} =  - \cos {45^0}.\)

C. \(\cos {135^0} = \cos {45^0}.\)

D. \(\cos {135^0} > \cos {45^0}.\)

A. \(C\left( { - 5;0} \right).\)

B. \(C\left( {  5;0} \right).\)

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

D. \(C\left( {0; - 5} \right).\)

A. \(\overrightarrow x  = \left( {19;22} \right).\)

B. \(\overrightarrow x  = \left( { - 19; - 22} \right).\)

C. \(\overrightarrow x  = \left( { - 19;22} \right).\)

D. \(\overrightarrow x  = \left( {19; - 22} \right).\)

A. \(\left| {\overrightarrow u } \right| = 1.\)

B. \(\left| {\overrightarrow u } \right| = 13.\)

C. \(\left| {\overrightarrow u } \right| = \sqrt {13} .\)

D. \(\left| {\overrightarrow u } \right| = 5.\)

A. \(\cos B =  - \frac{{\sqrt 3 }}{2}.\)

B. \(\cos B = \frac{{\sqrt 3 }}{2}.\)

C. \(\cos B = \frac{{\sqrt 2 }}{2}.\)

D. \(\cos B = -\frac{{\sqrt 2 }}{2}.\)

A. \(\overrightarrow {AB} .\overrightarrow {AC}  = a\sqrt 2 .\)

B. \(\overrightarrow {AB} .\overrightarrow {AC}  = 2a.\)

C. \(\overrightarrow {AB} .\overrightarrow {AC}  = {a^2}.\)

D. \(\overrightarrow {AB} .\overrightarrow {AC}  = 2{a^2}.\)