You are Here: Home >< A-levels

as maths question on sequences and serires watch

1. The first term of an arithmetic series is 14. If the fourth term is 32, find the common difference.

i'm not sure how to do this question??
2. (Original post by MyNameIsSaraOk)
The first term of an arithmetic series is 14. If the fourth term is 32, find the common difference.

i'm not sure how to do this question??
How many terms are there from the first to 4th term?
What is the difference between 32 and 14?
Then divide the difference between 32 and 14 by the number of terms between the 1st and 4th.
Hope this helps

Posted from TSR Mobile
3. (Original post by MyNameIsSaraOk)
The first term of an arithmetic series is 14. If the fourth term is 32, find the common difference.

i'm not sure how to do this question??

is the most basic way of doing it. Otherwise, use the formula.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: November 5, 2016
The home of Results and Clearing

1,251

people online now

1,567,000

students helped last year
Today on TSR

Hang on, have Edexcel's come out already?

University open days

1. Bournemouth University
Fri, 17 Aug '18
2. University of Bolton
Fri, 17 Aug '18
3. Bishop Grosseteste University
Fri, 17 Aug '18
Poll

All the essentials

Student life: what to expect

What it's really like going to uni

Essay expert

Learn to write like a pro with our ultimate essay guide.

Create a study plan

Get your head around what you need to do and when with the study planner tool.

Resources by subject

Everything from mind maps to class notes.

Study tips from A* students

Students who got top grades in their A-levels share their secrets