A. \(\overrightarrow n = \left( {a; - b} \right)\)
B. \(\overrightarrow n = \left( {b; a} \right)\)
C. \(\overrightarrow n = \left( {b; - a} \right)\)
D. \(\overrightarrow n = \left( {a; b} \right)\)
A. 3
B. 2
C. 1
D. 4
A. \(\overrightarrow{n}=\left( 1;-2 \right)\)
B. \(\overrightarrow{n}=\left( 2;1 \right)\)
C. \(\overrightarrow{n}=\left( -2;3 \right)\)
D. \(\overrightarrow{n}=\left( 1;3 \right)\)
A. \(\overrightarrow{u}=\left( 3\,;\,2 \right)\)
B. \(\overrightarrow{u}=\left( 3\,;\,-2 \right)\)
C. \(\overrightarrow{u}=\left( 2\,;\,-3 \right)\)
D. \(\overrightarrow{u}=\left( -2\,;\,-3 \right)\)
A. \(\left( 5;-3 \right)\).
B. \(\left( 6;1 \right)\)
C. \(\left( \frac{1}{2};3 \right)\).
D. \(\left( -5;3 \right)\).
A. \(\overrightarrow{n}\left( -2;-1 \right)\).
B. \(\overrightarrow{n}\left( 2;-1 \right)\).
C. \(\overrightarrow{n}\left( -1;2 \right)\).
D. \(\overrightarrow{n}\left( 1;2 \right)\).
A. \(\overrightarrow{u}=\left( -4;3 \right)\)
B. \(\overrightarrow{u}=\left( 4;3 \right)\)
C. \(\overrightarrow{u}=\left( 3;4 \right)\)
D. \(\overrightarrow{u}=\left( 1;-2 \right)\)
A. \(\overrightarrow{u}=\left( 1;0 \right)\).
B. \(\overrightarrow{u}=(1;-1)\)
C. \(\overrightarrow{u}=(1;1)\)
D. \(\overrightarrow{u}=(0;1)\).
A. \(\overrightarrow{u}=\left( 7;3 \right)\).
B. \(\overrightarrow{u}=\left( 3;7 \right)\).
C. \(\overrightarrow{u}=\left( -3;7 \right)\).
D. \(\overrightarrow{u}=\left( 2;3 \right)\)
A. \(\overrightarrow{{{n}_{1}}}=\left( 3\,;\,2 \right)\).
B. \(\overrightarrow{{{n}_{1}}}=\left( -4\,;\,-6 \right)\).
C. \(\overrightarrow{{{n}_{1}}}=\left( 2\,;\,-3 \right)\).
D. \(\overrightarrow{{{n}_{1}}}=\left( -2\,;\,3 \right)\)
A. \(\overrightarrow{{{n}_{1}}}=\left( 3;5 \right)\).
B. \(\overrightarrow{{{n}_{2}}}=\left( 3;-5 \right)\)
C. \(\overrightarrow{{{n}_{3}}}=\left( 5;3 \right)\)
D. \(\overrightarrow{{{n}_{4}}}=\left( -5;-3 \right)\)
A. \(\overrightarrow{u}=\left( 4\,;\,\,-2 \right)\).
B. \(\overrightarrow{v}=\left( -2\,;\,-1 \right)\).
C. \(\overrightarrow{m}=\left( 2\,;\,1 \right)\).
D. \(\overrightarrow{q}=\left( 4\,;\,2 \right)\).
A. \(\left( -1;-2 \right)\).
B. \(\left( 1;2 \right)\)
C. \(\left( -2;1 \right)\).
D. \(\left( -1;2 \right)\)
A. \(\overrightarrow{u}=\left( 7;3 \right)\).
B. \(\overrightarrow{u}=\left( 3;7 \right)\).
C. \(\overrightarrow{u}=\left( -3;7 \right)\).
D. \(\overrightarrow{u}=\left( 2;3 \right)\)
A. \({{\vec{n}}_{1}}\left( 0;-2 \right)\).
B. \({{\vec{n}}_{3}}\left( -2;0 \right)\).
C. \({{\vec{n}}_{4}}\left( 2;1 \right)\).
D. \({{\vec{n}}_{2}}\left( 1;-2 \right)\).
A. \(\left( 2;-1 \right)\).
B. \(\left( 1;2 \right)\).
C. \(\left( -2;1 \right)\).
D. \(\left( -2;-1 \right)\).
A. \(\left( -2;-1 \right)\)
B. \(\left( 2;-1 \right)\).
C. \(\left( -1;-2 \right)\).
D. \(\left( 1;-2 \right)\)
A. \(\overrightarrow{{{u}_{4}}}=\left( 3;-2 \right)\).
B. \(\overrightarrow{{{u}_{2}}}=\left( 2;3 \right)\)
C. \(\overrightarrow{{{u}_{1}}}=\left( 2;-3 \right)\).
D. \(\overrightarrow{{{u}_{3}}}=\left( 3;2 \right)\)
A. \(\overrightarrow{u}\left( 1;3 \right)\).
B. \(\overrightarrow{u}\left( 6;2 \right)\).
C. \(\overrightarrow{u}\left( -1;3 \right)\).
D. \(\overrightarrow{u}\left( 3;-1 \right)\).
A. \(\overrightarrow{u}=\left( 4;2 \right)\).
B. \(\overrightarrow{u}=\left( 4;-2 \right)\).
C. \(\overrightarrow{u}=\left( -4;-2 \right)\).
D. \(\overrightarrow{u}=\left( -2;4 \right)\).
A. \(\vec{u}=\left( 1;\,\,-2 \right)\).
B. \(\vec{u}=\left( 2;\,\,1 \right)\).
C. \(\vec{u}=\left( 2;\,\,-1 \right)\).
D. \(\vec{u}=\left( 1;\,\,2 \right)\)
A. \(\overrightarrow{{{n}_{1}}}=\left( -1;2 \right).\)
B. \(\overrightarrow{{{n}_{2}}}=\left( 1;-2 \right).\)
C. \(\overrightarrow{{{n}_{3}}}=\left( -3;6 \right).\)
D. \(\overrightarrow{{{n}_{4}}}=\left( 3;6 \right).\)
A. \(\overrightarrow{{{u}_{1}}}=\left( 2;-4 \right).\)
B. \(\overrightarrow{{{u}_{2}}}=\left( -2;4 \right).\)
C. \(\overrightarrow{{{u}_{3}}}=\left( 1;2 \right).\)
D. \(\overrightarrow{{{u}_{4}}}=\left( 2;1 \right).\)
A. . \(\overrightarrow{{{n}_{1}}}=\left( 4;3 \right).\)
B. \(\overrightarrow{{{n}_{2}}}=\left( -4;-3 \right).\)
C. \(\overrightarrow{{{n}_{3}}}=\left( 3;4 \right).\)
D. \(\overrightarrow{{{n}_{4}}}=\left( 3;-4 \right).\)
A. \(\overrightarrow{{{u}_{1}}}=\left( 5;-2 \right).\)
B. \(\overrightarrow{{{u}_{2}}}=\left( -5;2 \right).\)
C. \(\overrightarrow{{{u}_{3}}}=\left( 2;5 \right).\)
D. \(\overrightarrow{{{u}_{4}}}=\left( 2;-5 \right).\)
A. \(\overrightarrow{{{n}_{1}}}=\left( 4;3 \right).\)
B. \(\overrightarrow{{{n}_{2}}}=\left( -4;3 \right).\)
C. \(\overrightarrow{{{n}_{3}}}=\left( 3;4 \right).\)
D. \(\overrightarrow{{{n}_{4}}}=\left( 3;-4 \right).\)
A. \(\overrightarrow{{{u}_{1}}}=\left( 5;-2 \right).\)
B. \(\overrightarrow{{{u}_{2}}}=\left( -5;-2 \right).\)
C. \(\overrightarrow{{{u}_{3}}}=\left( 2;5 \right).\)
D. \(\overrightarrow{{{u}_{4}}}=\left( 2;-5 \right).\)
A. \(d\) có vectơ pháp tuyến \(\overrightarrow{n}=\left( 3;5 \right).\)
B. \(d\) có vectơ chỉ phương \(\overrightarrow{u}=\left( 5;-3 \right).\)
C. \(d\) có hệ số góc \(k=\frac{5}{3}.\)
D. \(d\) song song với đường thẳng \(\Delta :3x+5y=0.\)
A. \(\left( d \right)\) có hệ số góc \(k=\frac{1}{7}\)
B. \(\left( d \right)\)đi qua hai điểm \(M\left( -\frac{1}{3};2 \right)\) và \(M\left( 5;0 \right)\)
C. . \(\overrightarrow{u}=\left( -7;1 \right)\) là vecto chỉ phương của \(\left( d \right)\)
D. \(\left( d \right)\)đi qua gốc tọa độ
A. \(x+y-3=0\)
B. \(y=2x+1\).
C. \(\frac{x-4}{6}=\frac{y-1}{-4}\)
D.
\(\left\{ \begin{array}{l}
x = 1 + 3t\\
y = 1 - 2t
\end{array} \right.\)
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