Skip to main content
Super TutorResources
Chapter 6 of 10
Formula Sheet

Sequences and Series — Formula Sheet

NIOS · Class 12 · Mathematics

2 formulas from Sequences and Series (NIOS Class 12 Mathematics) on one page, grouped by topic. Includes The arithmetic mean of two.

45 questions25 flashcards2 formulas & key relations5 concepts

Interactive on Super Tutor

Studying Sequences and Series? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for formula sheet and more.

Try Super Tutor — Free

Free trial, no card needed.

Illustrates the definition of a sequence as an ordered collection of objects, showing how terms are indexed by natural numbers and providing simple examples.
Super Tutor

Learn better with visuals Super Tutor pairs illustrations like this with notes and quizzes for Sequences and Series.

2 Entries · 2 Sections

Formulas and Key Relations

Arithmetic Mean (A.M.)

The arithmetic mean of two numbers is their average

A = (a + b)/2

Key relations

An alternative form is S_n = (n/2)(a + l), where l is the last term.

Full sheet with units and worked examples

View All

Frequently Asked Questions

What are the important topics in Sequences and Series for NIOS Class 12 Mathematics?
Key topics in Sequences and Series include Concept of Sequences, Arithmetic Progression (A.P.), Arithmetic Mean (A.M.), Geometric Progression (G.P.). Study these first, then practise questions on each for the NIOS Class 12 board exam.
How many formulas are in Sequences and Series?
This sheet lists 2 formulas from Sequences and Series, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Sequences and Series for the NIOS Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Sequences and Series. 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.

More resources for Sequences and Series

All NIOS Class 12 Mathematics Formula Sheet

For serious students

Get the full Sequences and Series chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for NIOS Class 12 Mathematics. Free to start, no card needed.

Try Super Tutor Free
Try this chapter free