| Exam Board | OCR MEI |
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| Module | C1 (Core Mathematics 1) |
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| Year | 2008 |
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| Session | January |
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| Topic | Proof |
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9
- Prove that 12 is a factor of \(3 n ^ { 2 } + 6 n\) for all even positive integers \(n\).
- Determine whether 12 is a factor of \(3 n ^ { 2 } + 6 n\) for all positive integers \(n\).