Đề ôn tập Chương 3 Hình học lớp 10 năm 2021 Trường...

A. \(\frac{{12}}{5}.\)

B. \(\frac{{8}}{5}.\)

C. \(-\frac{{24}}{5}.\)

D. \(\frac{{24}}{5}.\)

A. \(\overrightarrow u = \left( {2;3} \right)\)

B. \(\overrightarrow u = \left( {3;2} \right)\)

C. \(\overrightarrow u = \left( {3; - 2} \right)\)

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

A. \({d_1}:3x + 2y = 0\)

B. \({d_2}:3x - 2y = 0\)

C. \({d_3}: - 3x + 2y - 7 = 0\)

D. \({d_4}:6x - 4y - 14 = 0\)

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

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

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

D. \(\overrightarrow u = \left( { - 3;1} \right)\)

A. x - 3y + 1 = 0

B. x + 3y + 3 = 0

C. x - 3y - 3 = 0

D. 3x + y + 1 = 0

A. \(I\left( {1;\,2} \right);R = 1\)

B. \(I\left( {1;\, - 2} \right);R = 3\)

C. \(I\left( {1;\, - 2} \right);R = 9\)

D. \(I\left( {2;\, - 4} \right);R = 9\)

A. \(\cos \alpha = \left| {\cos \left( {\overrightarrow {AB} ,\,\overrightarrow {CD} } \right)} \right|\)

B. \(\cos \alpha = \cos \left( {\overrightarrow {AB} ,\,\overrightarrow {CD} } \right)\)

C. \(\cos \alpha = \left| {\sin \left( {\overrightarrow {AB} ,\,\overrightarrow {CD} } \right)} \right|\)

D. \(\cos \alpha = - \left| {\cos \left( {\overrightarrow {AB} ,\,\overrightarrow {CD} } \right)} \right|\)

A. x + 2y - 8 = 0

B. x - 2y + 4 = 0

C. 2x - y - 1 = 0

D. 2x + y - 7 = 0

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

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

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

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

A. \(-\dfrac15\)

B. \(\dfrac15\)

C. 0

D. 1

A. x - 2y - 4 = 0

B. x + y + 4 = 0

C. x + y + 4 = 0

D. - x + 2y - 4 = 0

A. \({x^2} + {y^2} + 2x - 20 = 0\)

B. \({x^2} + {y^2} - 4x + 7y - 8 = 0\)

C. \({x^2} + {y^2} - 6x - 2y + 9 = 0\)

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

A. m = 1

B. m = -2

C. m = 2

D. m tùy ý

A. (2;-6)

B. (5;2)

C. (5;-2)

D. Không có giao điểm.

A. \({a^2} + {b^2} - 4c > 0\)

B. \({a^2} + {b^2} - c > 0\)

C. \({a^2} + {b^2} - 4c \ge 0\)

D. \({a^2} + {b^2} - c \ge 0\)

A. \(\frac{{{x^2}}}{{64}} + \frac{{{y^2}}}{{36}} = 1\)

B. \(\frac{{{x^2}}}{9} + \frac{{{y^2}}}{{16}} = 1\)

C. \(9{x^2} + 16{y^2} = 1\)

D. \(\frac{{{x^2}}}{{16}} + \frac{{{y^2}}}{9} = 1\)

A. 15

B. 5

C. -3

D. -15

A. x + y + 1 = 0

B. 2x + 3y - 5 = 0

C. 3x - 2y - 1 = 0

D. 2x - 3y + 1 = 0

A. 24x + 32y - 53 = 0

B. 24x + 32y + 53 = 0

C. 24x - 32y + 53 = 0

D. 24x - 32y - 53 = 0

A. \(\left( {\frac{{14}}{5};\frac{7}{5}} \right)\)

B. \(\left( { - \frac{{14}}{5}; - \frac{7}{5}} \right)\)

C. (3;1)

D. \(\left( {\frac{5}{3};\frac{3}{2}} \right)\)

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

B. \(\overrightarrow u = \left( {1;\; - 1} \right)\)

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

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

A. \(M\left( { - 1;\;2} \right);M\left( {4;\;3} \right)\)

B. \(M\left( { - 1;\;2} \right);M\left( {3;4} \right)\)

C. \(M\left( {1;\; - 2} \right);M\left( {3;\;4} \right)\)

D. \(M\left( {2;\; - 1} \right);M(3;4)\)

A. \(G\left( {2;\; - \frac{{11}}{3}} \right)\)

B. \(G\left( { - \frac{{11}}{3};\;2} \right)\)

C. \(G\left( {\frac{{11}}{3}; - \;2} \right)\)

D. \(G\left( { - 2;\;\frac{{11}}{3}} \right)\)

A. \(\left( {\frac{7}{6};\,\frac{{13}}{6}} \right)\)

B. \(\left( {\frac{7}{6};\, - \frac{{13}}{6}} \right)\)

C. \(\left( {\,\frac{{13}}{6};\frac{7}{6}} \right)\)

D. \(\left( { - \frac{7}{6};\,\frac{{13}}{6}} \right)\)

A. 45o

B. 60o

C. 30o

D. 135o

A. 7x - y = 0

B. x - 7y - 2 = 0

C. x + 7y - 2 = 0

D. 7x + y - 2 = 0

A. 4x - 2y + 1 = 0

B. x - 2y + 14 = 0

C. x + 2y - 14 = 0

D. x - 2y - 14 = 0

A. \(\widehat {A\,} = 45^\circ \)

B. \(\widehat {A\,} = 30^\circ \)

C. \(\widehat {A\,} = 60^\circ \)

D. \(\widehat {A\,} = 75^\circ \)

A. \(A\left( {\frac{4}{3};\frac{7}{3}} \right)\)

B. \(A\left( { - \frac{4}{3};\frac{7}{3}} \right)\)

C. \(A\left( { - \frac{4}{3}; - \frac{7}{3}} \right)\)

D. \(A\left( {\frac{4}{3}; - \frac{7}{3}} \right)\)

A. \({\left( {x + 8} \right)^2} + {\left( {y - 3} \right)^2} = 25\)

B. \({\left( {x - 2} \right)^2} + {\left( {y + 2} \right)^2} = 25\) hoặc \({\left( {x + 8} \right)^2} + {\left( {y - 3} \right)^2} = 25\)

C. \({\left( {x + 2} \right)^2} + {\left( {y - 2} \right)^2} = 25\) hoặc \({\left( {x - 8} \right)^2} + {\left( {y + 3} \right)^2} = 25\)

D. \({\left( {x - 8} \right)^2} + {\left( {y + 3} \right)^2} = 25\)

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

B. \({\left( {x - 3} \right)^2} + {\left( {y + 3} \right)^2} = 9\)

C. \({\left( {x - 2} \right)^2} + {\left( {y - 2} \right)^2} = 4\) hoặc \({\left( {x - 3} \right)^2} + {\left( {y + 3} \right)^2} = 9\)

D. \({\left( {x - 2} \right)^2} + {\left( {y - 2} \right)^2} = 4\) hoặc \({\left( {x + 3} \right)^2} + {\left( {y - 3} \right)^2} = 9\)

A. \({\left( {x - 5} \right)^2} + {\left( {y + 2} \right)^2} = 40\;\) hoặc \({\left( {x - 5} \right)^2} + {\left( {y - 8} \right)^2} = 10.\;\)

B. \({\left( {x - 5} \right)^2} + {\left( {y + 2} \right)^2} = 40.\)

C. \({\left( {x - 5} \right)^2} + {\left( {y - 8} \right)^2} = 10.\;\)

D. \({\left( {x - 5} \right)^2} + {\left( {y - 2} \right)^2} = 40\) hoặc \({\left( {x - 5} \right)^2} + {\left( {y + 8} \right)^2} = 10.\)

A. \({\left( {x - 6} \right)^2} + {y^2} = 29.\)

B. \({\left( {x - 5} \right)^2} + {y^2} = 29.\)

C. \({\left( {x - 4} \right)^2} + {y^2} = 13.\)

D. \({\left( {x - 3} \right)^2} + {y^2} = 8.\)

A. \({\left( {x - 1} \right)^2} + {\left( {y - 1} \right)^2} = 1\) hoặc \({\left( {x - 5} \right)^2} + {\left( {y - 5} \right)^2} = 25\)

B. \({\left( {x +1} \right)^2} + {\left( {y +1} \right)^2} = 1\) hoặc \({\left( {x + 5} \right)^2} + {\left( {y + 5} \right)^2} = 25.\)

C. \({\left( {x - 5} \right)^2} + {\left( {y - 5} \right)^2} = 25.\)

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

A. \({x^2} + {y^2} - 3x-7y + 12 = 0.\)

B. \({x^2} + {y^2} - 6x-4y + 5 = 0.\)

C. \({x^2} + {y^2} - 8x-2y +7 = 0.\)

D. \({x^2} + {y^2} - 2x - 8y + 20 = 0.\)

A. \({\left( {x - 3} \right)^2} + {\left( {y + 2} \right)^2} = 25.\)

B. \({\left( {x + 3} \right)^2} + {\left( {y - 2} \right)^2} = 5.\)

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

D. \({\left( {x - 5} \right)^2} + {\left( {y - 2} \right)^2} = 25.\)

A. \({a^2} - {b^2}\, > \,c\)

B. \({a^2} + {b^2}\, > \,c\)

C. \({a^2} + {b^2} < \,c\)

D. \({a^2}\, - {b^2}\, < \,c\)

A. \(4{x^2} + {y^2} - 10x - 6y - 2 = 0.\)

B. \({x^2} + {y^2} - 2x - 8y + 20 = 0.\)

C. \({x^2} + 2{y^2} - 4x - 8y + 1 = 0.\)

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

A. I(0;0)

B. I(1;0)

C. I(3;2)

D. I(1;1)