Edexcel Mathematics October 2020 · Paper 2 · Question 16 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

October 2020 · Paper 2 · Question 16 · 4 marks

16. Use algeb ra to prove that the square of any natural number is either a multiple of 3 or one more than a multiple of 3 (4) 51 52

Lesson: Proof by Deduction