Finite Geometric Sequences | Year 2 Pure | A Level Maths
Geometric sequences have a constant common ratio and grow or decay multiplicatively, with a wide range of real-world applications. In this lesson you will learn how to use u_n = a r^(n — 1) for the nth term and S_n = a (1 — r^n) / (1 — r) for the sum of n terms, present the proof of the sum formula, and use logarithms where the value of n must be found from a given sum.
Your A Level maths journey
We're with you every step of the way. Click here to find out more about the journey.
Only follow this arrow when you have covered the whole curriculum.
Lesson Video On Finite Geometric Sequences
Follow the lesson video carefully with a pen and paper. By the end of it you should be comfortable with this topic. If you want a blank copy of this lesson to follow along, scroll down to the PDF viewer below and select “Student Notes Template” and download using the link at the top of the PDF viewer.
Lesson Resources For Finite Geometric Sequences
Here you will find all of the PDF resources for the lesson on Finite Geometric Sequences. Please choose from the dropdown menu below. You are able to download worksheets and notes templates to help you follow the video lesson. Mark schemes and solutions are not downloadable.
Finding this resource useful? Share it with a friend!