\(\left( \Delta \right)\) qua \(O\) và song song với đường thẳng \(\left( d \right):\,\,\dfrac{{x - 1}}{2} = \dfrac{{y - 3}}{1} = \dfrac{z}{4}\) có phương trình là:
A.\(\left\{ \begin{array}{l}x = 2t\\y = t\\z = - 4t\end{array} \right.\)
B.\(\left\{ \begin{array}{l}x = 2t\\y = t\\z = 4t\end{array} \right.\)
C.\(\left\{ \begin{array}{l}x = 2t\\y = - t\\z = 4t\end{array} \right.\)
D.\(\left\{ \begin{array}{l}x - 2t\\y = t\\z = 4t\end{array} \right.\)
A.\(\left\{ \begin{array}{l}x = 2t\\y = t\\z = - 4t\end{array} \right.\)
B.\(\left\{ \begin{array}{l}x = 2t\\y = t\\z = 4t\end{array} \right.\)
C.\(\left\{ \begin{array}{l}x = 2t\\y = - t\\z = 4t\end{array} \right.\)
D.\(\left\{ \begin{array}{l}x - 2t\\y = t\\z = 4t\end{array} \right.\)
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Hóa Học lớp 12
