Sigma Notation What is sigma notation? The symbol Σ is the capital Greek letter sigma – that's why it's called 'sigma notation'! 'Σ' stands for 'sum' – the expression to the right of the Σ tells yo...
Language of Sequences & Series What is a sequence? A sequence is an ordered set of numbers with a rule for finding all the numbers in the sequence The numbers in a sequence are called terms The...
Geometric Series How do I find the sum of a geometric series? A geometric series is the sum of the terms of a geometric sequence The following formulae will let you find the sum of the first n term...
Geometric Sequences What do I need to know about geometric sequences? In a geometric sequence, there is a common ratio between consecutive terms in the sequence You need to know the nth term formul...
Arithmetic Series How do I find the sum of an arithmetic series? An arithmetic series is the sum of the terms of an arithmetic sequence The following formulae will let you find the sum of the first...
Arithmetic Sequences What do I need to know about arithmetic sequences? In an arithmetic sequence, the difference between consecutive terms in the sequence is constant That constant differen...
Approximating Values What is the general binomial expansion? The general binomial expansion, as given in the formula booklet, is If n ∈ ℕ then the expansion is finite (see Binomial Expansion) Other...
General Binomial Expansion - Multiple What is the general binomial expansion? The general binomial expansion, as given in the formula booklet, is If n ∈ ℕ then the expansion is finite (see Binomial...
General Binomial Expansion - Subtleties What is the general binomial expansion? The binomial expansion applies for positive integers, n ∈ ℕ The general binomial expansion applies to other types of ...
