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Algebra

Arithmetic sequences- Home
- UK Year 10 Maths
- Sequences and Series

Still Confused?

Try reviewing these fundamentals first.

Algebra

Arithmetic sequencesStill Confused?

Try reviewing these fundamentals first.

Algebra

Arithmetic sequencesNope, I got it.

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Get Started Now- Lesson: 110:50
- Lesson: 29:04
- Lesson: 3a8:20
- Lesson: 3b2:22
- Lesson: 47:19

An arithmetic series is the sum of an arithmetic sequence. In this lesson, we will learn how to solve problems using the arithmetic series formula.

Basic concepts: Arithmetic sequences,

Related concepts: Pascal's triangle, Binomial theorem, Introduction to infinite series, Convergence and divergence of normal infinite series ,

• the sum of $n$ terms of an arithmetic series:

${s_n}$= $\frac{n}{2}[2{t_1} + (n - 1)d]$

= $\frac{n}{2}[{t_1} + {t_n}]$

${s_n}$= $\frac{n}{2}[2{t_1} + (n - 1)d]$

= $\frac{n}{2}[{t_1} + {t_n}]$

- 1.
**Arithmetic series formula**

Determine the sum of the first ten terms of the arithmetic series: 6 + 1 – 4 – 9 – … . - 2.
**Problem involving both arithmetic sequence formula and arithmetic series formula**

Find the sum of the arithmetic series: – 4 – 1 + 2 + …. + 329. - 3.
**$t_{n}=s_{n}-s_{n-1}$**

The sum of the first n terms of an arithmetic series is ${s_n} = 7{n^2} - 5n$ .a)Find the common difference.b)Determine the first six terms of the corresponding arithmetic sequence. - 4.A triangle has a perimeter of 32m; the shortest side is 6 m long. If the side lengths of this triangle form an arithmetic sequence, what are the other side lengths?

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