3.3 Chapter summary

3.3 Chapter summary (EMA32)

Presentation: 2F85

• The general term is expressed as the $n^{\text{th}}$ term and is written as ${T}_{n}$.

• We define the common difference $d$ of a sequence as the difference between any two successive terms, where $d=T_{n}-T(n-1)$

• We can work out a general formula for each number pattern and use it to determine any term in the pattern.