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Arithmetic Progressions — Syllabus

Gujarat Board · Class 10 · Mathematics

What Arithmetic Progressions covers in Gujarat Board Class 10 Mathematics: 4 topics, for the 2026-27 session. Topics include What is an Arithmetic.

45 questions22 flashcards5 formulas & key relations5 concepts

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Illustrates the structure of an Arithmetic Progression (A.P.), showing the first term 'a' and common difference 'd', along with the general term formula.
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4 Topics · Gujarat Board Class 10 Mathematics · 2026-27

Topics in Arithmetic Progressions

1

What is an Arithmetic Progression?

  • An AP is a list of numbers where each term is obtained by adding a FIXED number to the preceding term.
  • This fixed number is called the Common Difference (d). It can be positive, negative, or zero.
  • The first term is denoted by 'a' (or a₁), the second term by a₂, and so on.
2

nth Term (General Term) of an AP

  • The nth term formula lets you find ANY term of the AP without listing all terms.
  • Formula: aₙ = a + (n-1)d, where a = first term, d = common difference, n = position of the term.
  • The last term of a finite AP is often denoted by 'l'. If the AP has m terms, then l = aₘ = a + (m-1)d.
3

Sum of First n Terms of an AP

  • The sum of the first n terms of an AP is denoted by Sₙ.
  • Main Formula: Sₙ = n/2 × [2a + (n-1)d]. Use this when a and d are known.
  • Alternative Formula: Sₙ = n/2 × (a + l). Use this when the first term (a) and last term (l) are known.
4

Problem-Solving Strategies and Special Cases

  • ASSUMING TERMS IN AP: For 3 terms in AP, take them as (a-d), a, (a+d). Their sum = 3a, which simplifies calculations.
  • For 4 terms in AP, take them as (a-3d), (a-d), (a+d), (a+3d). Their sum = 4a.
  • For 5 terms in AP, take them as (a-2d), (a-d), a, (a+d), (a+2d). Their sum = 5a.

Key Concepts

An arithmetic progression is a sequenceThe common difference is the fixedThe first term 'a' isThis formula allows us to findTo find the sum of

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Frequently Asked Questions

What are the important topics in Arithmetic Progressions for Gujarat Board Class 10 Mathematics?
Key topics in Arithmetic Progressions include What is an Arithmetic Progression?, nth Term (General Term) of an AP, Sum of First n Terms of an AP, Problem-Solving Strategies and Special Cases. Study these first, then practise questions on each for the Gujarat Board Class 10 board exam.
How should I revise Arithmetic Progressions for the Gujarat Board Class 10 board exam?
Learn the core ideas first, then work through the 45 practice questions on Arithmetic Progressions. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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