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3.1.1 Proof (A-level only)

3.1.1 Proof (A-level only)

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Question 20

Use proof by contradiction to show that there exist no integers a a\,a and b b\,b such that 15a+25b=215a + 25b = 215a+25b=2.

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3.1.1 Proof (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.1.1 Proof (A-level only)

107 exam-style questions on WJEC A Level Maths 3.1.1 Proof (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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