| Exam Board | OCR |
|---|
| Module | Further Pure Core 1 (Further Pure Core 1) |
|---|
| Year | 2019 |
|---|
| Session | June |
|---|
| Topic | Vectors: Cross Product & Distances |
|---|
8 The equation of a plane is \(4 x + 2 y + z = 7\).
The point \(A\) has coordinates \(( 9,6,1 )\) and the point \(B\) is the reflection of \(A\) in the plane.
Find the coordinates of the point \(B\).