Home Courses QCE Year 11 Maths C Arithmetic Sequences and Arithmetic Series (Free) Finding the number of Terms ← Previous Topic Next Topic → TopicFinding the number of Terms Topic Progress: Set up a rule \( \ {T}_{n} = {a} + {(n - 1)d} \ \) for finding the number of terms of an arithmetic sequence.Practice Questions Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Show Solution Back to Lesson