| Exam Board | AQA |
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| Module | Paper 3 (Paper 3) |
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| Year | 2022 |
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| Session | June |
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| Topic | Proof |
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9
- Prove that \(a\) is even.
9
- Hence, prove that \(2 b + 1\) is even and explain why this is a contradiction.
9 - Explain what can be deduced about the solutions of the equation
$$a ^ { 2 } - 4 b - 2 = 0$$