<br/><img src="https://media.cheggcdn.com/media%2F87a%2F87a65b43-c997-42a8-9a3e-ff60d0e581bc%2Fimage.png" alt="8. (5 marks) Prove that n+(n+1(n+2) is divisible by 9 using mathematical induction. 9. (5 marks) Prove that for all integers" aria-describedby="d3f"/>8. (5 marks) Prove that n'+(n+1(n+2) is