| Exam Board | Edexcel |
|---|
| Module | CP AS (Core Pure AS) |
|---|
| Year | 2023 |
|---|
| Session | June |
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| Topic | Matrices |
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1.
$$\left( \begin{array} { l l }
x & 9
y & z
\end{array} \right) - 3 \left( \begin{array} { l l }
z & y
z & y
\end{array} \right) = k \mathbf { I }$$
where \(x , y , z\) and \(k\) are constants.
Determine the value of \(x\), the value of \(y\) and the value of \(z\).