A LevelMathsEdexcelPureRevision NotesSequences & SeriesGeometric Sequences & SeriesGeometric Sequences

Geometric Sequences (Edexcel A Level Maths) : Revision Note

Roger B

Author

Roger B

Last updated

Edexcel Maths: PureOCR Maths A: PureAQA Maths: Pure

Did this video help you?

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

Geom Seq Illustr, A Level & AS Level Pure Maths Revision Notes

  • You need to know the nth term formula for a geometric sequence

    u subscript n equals a   r to the power of n minus 1 end exponent

    • a is the first term

    • r is the common ratio

Examiner Tips and Tricks

If you know two terms in a geometric sequence you can find a and d using simultaneous equations. 

Geom Seq Simult, A Level & AS Level Pure Maths Revision Notes

Worked Example

Geom Seq Example, A Level & AS Level Pure Maths Revision Notes
👀 You've read 1 of your 5 free revision notes this week
An illustration of students holding their exam resultsUnlock more revision notes. It's free!

By signing up you agree to our Terms and Privacy Policy.

Already have an account? Log in

Test yourself

Did this page help you?

Previous:Arithmetic SeriesNext:Geometric Series
Roger B

Author: Roger B

Expertise: Maths Content Creator

Roger's teaching experience stretches all the way back to 1992, and in that time he has taught students at all levels between Year 7 and university undergraduate. Having conducted and published postgraduate research into the mathematical theory behind quantum computing, he is more than confident in dealing with mathematics at any level the exam boards might throw at you.

Download notes on Geometric Sequences