Sequences and series

• For those that have missed or need help with arithmetic and geometric series, watch these. They are a collection of tutorials covering this entire topic

https://www.mathsgenie.co.uk/a-level-pure-sequences-and-series.html

Arithmetic sequences -

Introduction. This video introduces the idea and helps you understand where the formula come from

More likely exam question - This video covers the more likely situation of problem solving in arithmetic sequences, using simultaneous equations

Geometric series

Introduction

Proof of formula - for those interested

Sum to infinite

Common exam question - This video covers the more likely situation of problem solving in arithmetic sequences, using simultaneous equations

Sigma notation tutorial

Binomial expansion

• Binomial expansion - This is a very long video but covers absolutely everything. Watch with breaks.

• Exam Questions - Binomial expansion for positive integer powers

• Exam Questions - Binomial expansion, comparing coefficients

• Exam Questions - Binomial expansion, estimating a value

• Exam Questions - Binomial expansion, other