3 The line \(L\) has equation \(\mathbf { r } = \left[ \begin{array} { l } 3 \\ 2 \\ 0 \end{array} \right] + \lambda \left[ \begin{array} { c } - 1 \\ - 2 \\ 5 \end{array} \right]\)
Which of the following lines is perpendicular to the line \(L\) ?
Show mark scheme
Show mark scheme source
Question 3:
Answer Marks
Guidance
\(\mathbf{r} = \begin{bmatrix} 0 \\ 3 \\ 2 \end{bmatrix} + \mu \begin{bmatrix} 4 \\ 3 \\ 2 \end{bmatrix}\) B1
Ticks correct answer
Copy
## Question 3:
$\mathbf{r} = \begin{bmatrix} 0 \\ 3 \\ 2 \end{bmatrix} + \mu \begin{bmatrix} 4 \\ 3 \\ 2 \end{bmatrix}$ | B1 | Ticks correct answer
Show LaTeX source
Copy
3 The line $L$ has equation $\mathbf { r } = \left[ \begin{array} { l } 3 \\ 2 \\ 0 \end{array} \right] + \lambda \left[ \begin{array} { c } - 1 \\ - 2 \\ 5 \end{array} \right]$
Which of the following lines is perpendicular to the line $L$ ?\\
Tick $( \checkmark )$ one box.
$$\begin{aligned}
& \mathbf { r } = \left[ \begin{array} { c }
2 \\
- 3 \\
4
\end{array} \right] + \mu \left[ \begin{array} { c }
1 \\
2 \\
- 5
\end{array} \right] \\
& \mathbf { r } = \left[ \begin{array} { l }
1 \\
0 \\
1
\end{array} \right] + \mu \left[ \begin{array} { c }
2 \\
- 3 \\
1
\end{array} \right] \\
& \mathbf { r } = \left[ \begin{array} { l }
1 \\
2 \\
1
\end{array} \right] + \mu \left[ \begin{array} { l }
1 \\
1 \\
2
\end{array} \right] \\
& \mathbf { r } = \left[ \begin{array} { l }
0 \\
3 \\
2
\end{array} \right] + \mu \left[ \begin{array} { l }
4 \\
3 \\
2
\end{array} \right]
\end{aligned}$$
□\\
□\\
□\\
□
\hfill \mbox{\textit{AQA Further Paper 2 2021 Q3 [1]}}