Arithmetic Progressions

Revision Guide

Introduction - What is an A.P?

In this tutorial you are shown what an arithmetic progression (A.P.) is and the formulae used to find the nth term and the sum Sn of the first n terms in the sequence with a simple example.

You may wish to try the example as part of your revision.

(1)

example 1

Introduction to Arithmetic Progressions and Worked Solution to (1)

Proof of the Formula for Sn

Some exam boards expect you to be able to prove the formula for the sum Sn of the first n terms of an arithmetic sequence. In this video you are shown how.

Proof of the formula for S(n)

 

Related Topics

Sequences - Recurrence Relationships

Series - Sigma notation

 

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Exam Questions on Arithmetic Progressions with Video Worked Solutions

The following questions will help with your maths revision, they are on arithmetic progressions and taken from past examination question papers.

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