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Proof

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Question 21
a.

Show that the square of any odd positive integer can be written in the form 4k+14k+14k+1.

[2]
b.

Prove algebraically that the sum of the squares of any 2 odd positive integers is always even.

[1]
Markscheme

Proof Questions

  1. GCSE
  2. /Maths
  3. /Proof

207 exam-style questions on Eduqas GCSE Maths Proof. Each one has a worked solution and a mark scheme showing where the marks go.

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