Skip to content

Course home

Sign up

1.7.5 Geometric sequences and series (A-level only)

EasyMediumHard
1234
Question 1
55%

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

1.7.5 Geometric sequences and series (A-level only) Questions

  1. A Level
  2. /Maths
  3. /1.7.5 Geometric sequences and series (A-level only)

38 exam-style questions on AQA A Level Maths 1.7.5 Geometric sequences and series (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

Question bank