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1.1 Proof by Contradiction

1.1 Proof by Contradiction

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Question 18

Use proof by contradiction to show that there exist no integers x x\,x and y y\,y such that 15x+20y=215x + 20y = 215x+20y=2.

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Markscheme

1.1 Proof by Contradiction Questions

  1. A Level
  2. /Maths
  3. /1.1 Proof by Contradiction

107 exam-style questions on Edexcel A Level Maths 1.1 Proof by Contradiction. Each one has a worked solution and a mark scheme showing where the marks go.

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