Sequences and How to Specify Them (HSC SSCE Mathematics Advanced): Flashcards

📚Flashcards
Sequences and How to Specify Them
Sign up to keep revising.Create a free account to study more flashcards and track your progress.

Practise the cards

10 cards from this deck

Show

Definition of a sequence

An ordered list of numbers following a specific pattern or rule

Two types of sequences

Infinite (continuing forever) and finite (ending after set terms)

What TnT_n represents

The nth term of a sequence

Three methods to specify a sequence

Write terms; TnT_n formula; starting value + recursive rule

Recursive formula components

Starting value and rule to get from one term to the next

Main advantage of TnT_n formula method

Calculate any term directly without previous terms

Main limitation of recursive formula

Must calculate all previous terms to find a given term

Checking if value is in sequence: required condition for nn

Must be a positive integer

Finding first positive term: what to state

Both the term number (nn) and its value (TnT_n)

TnT_n formula for positive odd integers

Tn=2n−1T_n = 2n - 1

Join 100,000+ SSCE students studying Flashcards with us.

Select your subjects, and get access to A+ resources today.