Matrices: past paper questions
Real questions on matrices
The newest 20 of 181 written questions. Open one to see it on the real paper.
- 9231/11 · October/November 2025 · Q2a[2]
2-mark “Give” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/11 · October/November 2025 · Q2b[2]
2-mark “Give” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/11 · October/November 2025 · Q2c[2]
2-mark “Show” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/11 · October/November 2025 · Q2d[5]
5-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/12 · October/November 2025 · Q4b[6]
6-mark “Show” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/21 · October/November 2025 · Q1[3]
3-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/21 · October/November 2025 · Q6a[1]
1-mark question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/21 · October/November 2025 · Q6b(i)[1]
1-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/21 · October/November 2025 · Q6b(ii)[3]
3-mark “Use” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/21 · October/November 2025 · Q6c[5]
5-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/23 · October/November 2025 · Q1[3]
3-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/23 · October/November 2025 · Q6a[1]
1-mark question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/23 · October/November 2025 · Q6b(i)[1]
1-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/23 · October/November 2025 · Q6b(ii)[3]
3-mark “Use” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/23 · October/November 2025 · Q6c[5]
5-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/11 · May/June 2025 · Q4a[2]
2-mark “State” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/11 · May/June 2025 · Q4b[7]
7-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/12 · May/June 2025 · Q4a[2]
2-mark “State” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/12 · May/June 2025 · Q4b[7]
7-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 9231/13 · May/June 2025 · Q1a[4]
4-mark question — its maths and diagrams are best seen on the paper.
See it on the paper →
What examiners said
The majority of candidates were successful with this question. They understood the relationship between roots and coefficients, and errors were usually arithmetical.
— Examiner report, October/November 2023, 9231/11 Q3(a) (Cambridge)
The most successful method was to write down the equation with each root substituted and sum them.
— Examiner report, October/November 2023, 9231/11 Q3(b) (Cambridge)
Almost all candidates found the determinant correctly. While it was common to see row operations or elimination of a variable, only strong candidates gave a full geometric interpretation by emphasising that there are two non-identical parallel planes with a third plane intersecting both.
— Examiner report, October/November 2023, 9231/21 Q1 (Cambridge)
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