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A-LevelMathematicsVectorsOct/Nov 2025Paper 3 Q99 Marks

The line l₁ passes through the point (3, 1, −6) and is parallel to the vector 2i+j+4k. The line l₂ passes through the point (−1, 3, −6) and is perpendicular to the vector 3i-2j+k. The direction vector for l₂ has no component in the x-direction.

Q: What topic does this question test?

This question tests Vectors in A-Level Mathematics (syllabus code 9709). It is worth 9 marks.

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Mathematics Question

Topic

This structured question tests Vectors in A-Level Mathematics (syllabus code 9709). It is worth 9 marks.

Source

This question appeared in the Cambridge A-Level Mathematics Oct/Nov 2025 examination, Paper 3 Variant 3.

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