Chapter 6 – Sequence & Series The Questions in this revision are taken from the book so you will be able to find the answers in there.

Chapter 6 I can do or understand this v v The sequence is infinite. Is the sequence infinite?

I can do or I understand this v v

Chapter 6 To find the difference you choose two consecutive terms and subtract the first from the second. e.g u n+1 – u n = d where d is the difference. The General Term u n I can do or I understand this v v

Chapter 6 Part C See example 3 See example 4 See example 5 I can do or I understand this v v v

For geometric sequences you have to find the common ratio. Chapter 6 Part C.2 Arithmetic Sequence Problems To find the ratio you choose two consecutive terms and divide the second term by the first term e.g. (u n+1 )/(u n ) = r where r is the common ratio.

Chapter 6 Part D.1 Geometric Sequences See Example 7 See example 8 See example 9 See example 10 Part D.2 Geometric Sequence Problems See example 11 I can do or I understand this v v

Chapter 6 Part D.3 Compound Interest See example 12 See example 13 Part E – Seires & Sigma Notation I can do or I understand this v

Chapter 6 Part E – Series and Sigma Notation See examples 14 & 15 I can do or I understand this v v v v v

Chapter 6 See example 16 & 17 I can do or I understand this v v

Chapter 6 G6.1 See example 18 & 19 I can do or I understand this vv

Chapter 6 G6.2 Sum of an Infinite Geometric Series Note: you can only find the sum of an infinite geometric series if the ratio is between -1 & 1. See example 20 I can do or I understand this v v v

Chapter 6 G6.2 Sum of an Infinite Geometric Series I can do or I understand this v v Need more revision? Check out Chapter 6 Review Exercises & don’t forget the exam questions on my website. Come to my ASAs.