Skip to content

Course home

3.4 Geometric Series

3.4 Geometric Series

Medium
12345678910111213141516171819202122
Question 1
52%

A geometric series is a+ar+ar2+…a + ar + ar^2 + \dotsa+ar+ar2+…

Prove that the sum of the first n n\,n terms of the series is

Sn=a(rn−1)r−1 S_n = \frac{a(r^n - 1)}{r - 1} Sn​=r−1a(rn−1)​
[4]
Markscheme

3.4 Geometric Series Questions

  1. A Level
  2. /Maths
  3. /3.4 Geometric Series

22 exam-style questions on Edexcel A Level Maths 3.4 Geometric Series. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank