A-level Mathematics/MEI/C2/Sequences and Series

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Sequences and Series - Principles[edit]

A sequence is a set of numbers in a given order: ½ ⅓ ⅔ ¼

Arithmetic sequences:  a_n = an + b

Geometric sequences:  a_n = a r^{n-1}

Oscillating sequences:  a_n = (-1)^n

Periodic sequences.