| Exam Board | Edexcel |
|---|
| Module | C4 (Core Mathematics 4) |
|---|
| Topic | Vectors 3D & Lines |
|---|
4. Relative to a fixed origin, two lines have the equations
$$\begin{aligned}
& \mathbf { r } = \left( \begin{array} { c }
7
0
- 3
\end{array} \right) + \lambda \left( \begin{array} { c }