# Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663/01) | Year 2007 | June | Q#8

Question A sequence is defined by , , Where is a positive integer. a) Write down an expression for a in terms of k. b) Show that . c) i. Find in terms of k. ii. Show that is divisible by 10. Solution a) We are given that […]