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1.1.4 Proof by contradiction (A-level only)

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Question 7
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Prove by contradiction that 5 \sqrt{5}\,5​ is irrational.

[6]
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1.1.4 Proof by contradiction (A-level only) Questions

  1. A Level
  2. /Maths
  3. /1.1.4 Proof by contradiction (A-level only)

107 exam-style questions on OCR A Level Maths 1.1.4 Proof by contradiction (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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