Sequences 2 (AQA GCSE Maths): Flashcards

📚Flashcards
Sequences 2
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 arithmetic sequence

Sequence with constant difference between consecutive terms

Alternative name for arithmetic sequence

Linear sequence

What is the common difference

Constant difference between consecutive terms

First step to find nth term formula

Identify the common difference

nth term for sequence 1, 5, 9, 13, 17...

4n34n - 3

20th term of 4n34n - 3

4imes203=774 imes 20 - 3 = 77

What must n always be

A positive whole number

Method 1 to check if number is in sequence

Trial and error with consecutive integer values of n

Method 2 to check if number is in sequence

Set up equation and solve for n algebraically

What if n is decimal, zero, or negative

Number is not part of the sequence

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

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