| Exam Board | OCR |
| Module | Further Pure Core 1 (Further Pure Core 1) |
| Year | 2022 |
| Session | June |
| Topic | Vectors: Lines & Planes |
4 Determine the acute angle between the line \(\mathbf { r } = \left( \begin{array} { c } - \sqrt { 3 }
1
3 \end{array} \right) + \lambda \left( \begin{array} { c } 1
2 \sqrt { 3 }
- \sqrt { 3 } \end{array} \right)\) and the \(y\)-axis.