Prove that the sum of the squares of any three consecutive integers is 2 more than a multiple of 3.
[3]
b.
Hence explain why the sum of the squares of three consecutive integers is never a multiple of 3.
[1]
Markscheme
1.5.6 Polynomials and rational expressions Questions
113 exam-style questions on AQA A Level Maths 1.5.6 Polynomials and rational expressions. Each one has a worked solution and a mark scheme showing where the marks go.