Sequence & Series|High School|NCERT : Become an Expert

Learn everything there is to know about Arithmetic Progression, Geometric Progression and some more special series.
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3,154 students
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Complete understanding of Arithmetic Progression (A.P.) with solved examples
Complete understanding of Geometric Progression (G.P.) with solved examples
nth term, Sum of n terms of an A.P., G.P.
Sum of first n natural numbers
1^2 + 2^2 + 3^2 .... n^2
Sum of special series like sum of cubes of first n natural numbers
Relationship between Arithmetic Mean, Geometric Mean


  • Very basic Mathematics knowledge of Addition, Subtraction, Multiplication, Division
  • We'll start everything from scratch, and build to expertise level.


We will learn everything about Arithmetic Progression, Geometric Progression and some special series - from deriving formulas for nth term, finding sum of first n terms, sum of first n natural numbers, sum of squares & cubes of first n natural numbers. The course will demonstrate many solved examples, for interesting real life questions. This course is for absolute beginner, and by the end of the course with some practice, you will become an expert in any Sequence & Series question. The course is highly useful for any school student and students preparing for competitive examinations like SAT, GRE, IIT JEE Mains & Advance. 

  • Arithmetic Progression 
  • Geometric Progression 
  • Sum of first n natural numbers
  • Sum of squares & cubes of first n natural numbers
  • Special Series 

Who this course is for:

  • Anyone who wants to learn Mathematics
  • High School Students
  • Students for Grade X CBSE, ICSE, State Boards in India
  • IIT JEE Mains Students

Course content

1 section18 lectures3h 7m total length
  • Which is your favourite pattern in Nature
  • Introduction to Arithmetic Progression
  • Introduction to AP with Solved Examples
  • nth term of an A.P.
  • nth term of an A.P. Solved Examples
  • nth term of an A.P. Advance Examples
  • Sum of n terms of an A.P.
  • Sequence & Series Intro
  • Properties of Arithmetic Progression
  • Sum of n terms of an A.P. Advance examples
  • Insert n number of terms between two given number - A.P.
  • nth term of Geometric Progression
  • Sum of n terms of G.P.
  • Sum of 7+77+777+7777 + .... n terms
  • Geometric Mean
  • Relationship between A.M. & G.M.
  • Sum of series 5 + 11 + 19 + 29 + 41 + .... n terms
  • Miscellaneous Examples


Educator at Unacademy |Youtuber @ e-Vidyalaya by Abhishek
Abhishek Mishra, IITian, PhD in Neuroscience
  • 4.1 Instructor Rating
  • 62 Reviews
  • 5,191 Students
  • 2 Courses

I did my undergraduate studies at Indian Institute of Technology, Kharagpur, India (2011-2016). Right now, I am a PhD candidate in Neuroscience at Max Planck Institute of Neurobiology, Munich, Germany. I am trying to understand how a neural circuit functions. At Udemy, I will be creating courses for benefit of students. You can follow my courses on Unacademy (link on my profile). You can subscribe to my youtube channel (e-Vidyalaya by Abhishek Mishra) - link in my profile, to get more contents.