Home Courses QCE Year 11 Maths C Arithmetic Sequences and Arithmetic Series (Free) Sum of an Arithmetic Series ← Previous Topic Next Topic → TopicSum of an Arithmetic Series Topic Progress: When the terms of an arithmetic sequence are added together, an arithmetic series is formed. The sum of n terms of an arithmetic sequence is given by Sn.Practice Questions Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Back to Lesson