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Chapter 8 Class 11 Sequences and Series

Master Chapter 8 Class 11 Sequences and Series with comprehensive NCERT Solutions, Practice Questions, MCQs, Sample Papers, Case Based Questions, and Video lessons.

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Updated for new NCERT - 2026-2026 Edition.

Solutions of Chapter 8 Sequences and Series of Class 11 NCERT book available free. All exercise questions, examples, miscellaneous are done step by step with detailed explanation for your understanding. 

 

In this Chapter we learn about Sequences

Sequence is any group of numbers with some pattern.

Like 2, 4, 8, 16, 32, 64, 128, 256, ....

Or

1, 2, 3, 4, 5, 6, 7, 8

 

In this chapter we learn

  • What a sequence is - and what is finite, infinite sequence, terms of a sequence
  • What a series is - it is the sum of a sequence
  • Denoting Sum by sigma Σ, and what it means
  • What is an AP (Arithmetic Progression) is, and finding its nth term and sum
  • Inserting AP between two numbers
  • What is Arithmetic Mean (AM), and how to find it
  • What is a GP (Geometric Progression) is, and finding its nth term and sum
  • Inserting GP between two numbers
  • What is Geometric Mean (GM), and how to find it
  • Relationship between AM and GM
  • Sum of special series
  • Finding sum of series when nth term is given
  • Finding sum of series when nth term is not given

 

Check out the solutions below by clicking an exercise, or a topic

Serial order wise

Ex 8.1 Start Learning
Ex 8.2 Start Learning
Examples Start Learning
Miscellaneous Start Learning
Arithmetic Progression Start Learning
Sum of Series Start Learning

Concept wise

Finding Sequences Start Learning
Arithmetic Progression (AP): Formulae based Start Learning
Arithmetic Progression (AP): Statement Start Learning
Arithmetic Progression (AP): Calculation based/Proofs Start Learning
Inserting AP between two numbers Start Learning
Arithmetic Mean (AM) Start Learning
Geometric Progression(GP): Formulae based Start Learning
Geometric Progression(GP): Statement Start Learning
Geometric Progression(GP): Calculation based/Proofs Start Learning
Inserting GP between two numbers Start Learning
Geometric Mean (GM) Start Learning
AM and GM (Arithmetic Mean And Geometric mean) Start Learning
AP and GP mix questions Start Learning
Finding sum from series Start Learning
Finding sum from nth number Start Learning

Why Learn This With Teachoo?

Updated for new NCERT - 2026-2026 Edition.

Solutions of Chapter 8 Sequences and Series of Class 11 NCERT book available free. All exercise questions, examples, miscellaneous are done step by step with detailed explanation for your understanding. 

 

In this Chapter we learn about Sequences

Sequence is any group of numbers with some pattern.

Like 2, 4, 8, 16, 32, 64, 128, 256, ....

Or

1, 2, 3, 4, 5, 6, 7, 8

 

In this chapter we learn

  • What a sequence is - and what is finite, infinite sequence, terms of a sequence
  • What a series is - it is the sum of a sequence
  • Denoting Sum by sigma Σ, and what it means
  • What is an AP (Arithmetic Progression) is, and finding its nth term and sum
  • Inserting AP between two numbers
  • What is Arithmetic Mean (AM), and how to find it
  • What is a GP (Geometric Progression) is, and finding its nth term and sum
  • Inserting GP between two numbers
  • What is Geometric Mean (GM), and how to find it
  • Relationship between AM and GM
  • Sum of special series
  • Finding sum of series when nth term is given
  • Finding sum of series when nth term is not given

 

Check out the solutions below by clicking an exercise, or a topic