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Proof

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Question 13
a.

Write two odd positive integers in the form 2n+12n+12n+1 and 2m+12m+12m+1.

[1]
b.

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

[2]
Markscheme

Proof Questions

  1. GCSE
  2. /Maths
  3. /Proof

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

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