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3.1.1 Proof (A-level only)

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Question 4
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Use proof by contradiction to show that there exist no integers x x\,x and y y\,y for which 15x+25y=415x + 25y = 415x+25y=4.

[4]
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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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