2 Which one of the matrices below represents a rotation of \(90 ^ { \circ }\) about the \(x\)-axis? Circle your answer.
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Question 2:
Answer Marks
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Answer Marks
Guidance
Circles \(\begin{bmatrix} 1 & 0 & 0 \\ 0 & 0 & -1 \\ 0 & 1 & 0 \end{bmatrix}\) B1
AO 1.2
Total: 1 mark
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## Question 2:
| Answer | Marks | Guidance |
|--------|-------|----------|
| Circles $\begin{bmatrix} 1 & 0 & 0 \\ 0 & 0 & -1 \\ 0 & 1 & 0 \end{bmatrix}$ | B1 | AO 1.2 |
**Total: 1 mark**
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2 Which one of the matrices below represents a rotation of $90 ^ { \circ }$ about the $x$-axis? Circle your answer.\\[0pt]
[1 mark]\\
$\left[ \begin{array} { c c c } 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & - 1 \end{array} \right]$\\
$\left[ \begin{array} { c c c } - 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{array} \right]$\\
$\left[ \begin{array} { l l l } 1 & 0 & 0 \\ 0 & 0 & 1 \\ 0 & 1 & 0 \end{array} \right]$\\
$\left[ \begin{array} { c c c } 1 & 0 & 0 \\ 0 & 0 & - 1 \\ 0 & 1 & 0 \end{array} \right]$
\hfill \mbox{\textit{AQA Further Paper 1 2020 Q2 [1]}}