9. Sequences and Series

  • This page has links to complete syllabus of NCERT Chapter 9 Sequences and Series based on syllabus recommended by CBSE based on class 11 maths.
  • There are 14 video lectures having explanations from basic to advance concepts, each and every NCERT solutions, questions and all important examples. You can access them directly from the lecture menu or just scroll down the page.
  • All lecture were uploaded on YouTube so for better learning experience here you will find link to YouTube Playlist of Chapter 9 Sequences and Series.
  • Also, there are detailed highlights of each video lecture with exact timestamp links so that you can easily access all topics and questions directly.
  • Just click on the timestamp link and you will be redirected to video watch page at exactly that time.
  • You can ask doubts in Sequences and Series at the end of this page.

YouTube Playlist
NCERT INDEX
9(A) || NCERT Exercise 9.1

00:00:16 Meaning of Sequences
00:01:34 Meaning of General Term (nth term)
00:13:42 Meaning of Series
00:19:32 Question 1
00:20:31 Question 2
00:21:02 Question 3
00:21:34 Question 4
00:22:14 Question 5
00:23:25 Question 6
00:25:54 Question 7
00:26:24 Question 8
00:26:24 Question 9
00:27:24 Question 10
00:29:04 Question 11
00:31:14 Question 12
00:33:04 Question 13
00:34:24 Question 14 (Fibonacci Sequence)

9(B) || NCERT Exercise 9.2 (Q1 to Q4)

00:00:09 Meaning and Basics of Arithmetic Progression
00:02:05 Derivation for nth term (General term) of Arithmetic Progression
00:08:26 Derivation for Sum to n terms of a Arithmetic Progression
00:19:50 Relationship between Arithmetic Progression and Arithmetic Mean
00:22:56 NCERT Exercise 9.2 Question 1
00:28:16 NCERT Exercise 9.2 Question 2
00:31:30 NCERT Exercise 9.2 Question 3
00:39:40 NCERT Exercise 9.2 Question 4

9(C) || NCERT Exercise 9.2 (Q5 to Q12)

00:00:14 NCERT Exercise 9.2 Question 5
00:05:44 NCERT Exercise 9.2 Question 6
00:10:44 NCERT Exercise 9.2 Question 7
00:14:54 NCERT Exercise 9.2 Question 8
00:18:24 NCERT Exercise 9.2 Question 9
00:27:45 NCERT Exercise 9.2 Question 10
00:37:15 NCERT Exercise 9.2 Question 11
00:45:25 NCERT Exercise 9.2 Question 12

9(D) || NCERT Exercise 9.2 (Q13 to Q18)

00:00:10 NCERT Exercise 9.2 Question 13
00:03:22 NCERT Exercise 9.2 Question 14
00:07:22 NCERT Exercise 9.2 Question 15
00:18:22 NCERT Exercise 9.2 Question 16
00:28:42 NCERT Exercise 9.2 Question 17
00:31:02 NCERT Exercise 9.2 Question 18

9(E) || NCERT Exercise 9.3 (Q1 to Q10)

00:00:00 Meaning of Geometric Progression (GP) and its common ratio
00:03:50 General Term of Geometric Progression (nth term of GP)
00:06:00 Derivation for Sum to n terms of a GP
00:13:55 Geometric Mean and its relationship with Geometric Progression
00:18:56 Rules Comparison of Arithmetic Progression and Geometric Progression
00:22:00 NCERT Exercise 9.3 Question 1
00:24:30 NCERT Exercise 9.3 Question 2
00:26:44 NCERT Exercise 9.3 Question 3
00:28:10 NCERT Exercise 9.3 Question 4
00:32:20 NCERT Exercise 9.3 Question 5
00:38:11 NCERT Exercise 9.3 Question 6
00:39:21 NCERT Exercise 9.3 Question 7
00:41:40 NCERT Exercise 9.3 Question 8
00:43:42 NCERT Exercise 9.3 Question 9
00:45:22 NCERT Exercise 9.3 Question 10

9(F) || NCERT Exercise 9.3 (Q11 to Q18)

00:00:26 NCERT Exercise 9.3 Question 11
00:05:09 NCERT Exercise 9.3 Question 12
00:13:39 NCERT Exercise 9.3 Question 13
00:15:39 NCERT Exercise 9.3 Question 14
00:20:29 NCERT Exercise 9.3 Question 15
00:27:29 NCERT Exercise 9.3 Question 16
00:32:18 NCERT Exercise 9.3 Question 17
00:35:00 NCERT Exercise 9.3 Question 18

9(G) || NCERT Exercise 9.3 (Q19 to Q25)

00:00:08 NCERT Exercise 9.3 Question 19

00:03:59 NCERT Exercise 9.3 Question 20

00:08:09 NCERT Exercise 9.3 Question 21

00:12:35 NCERT Exercise 9.3 Question 22

00:17:18 NCERT Exercise 9.3 Question 23

00:23:00 NCERT Exercise 9.3 Question 24

00:30:00 NCERT Exercise 9.3 Question 25

9(H) || NCERT Exercise 9.3 (Q26 to Q32)

00:00:20 NCERT Exercise 9.3 Question 26
00:02:11 NCERT Exercise 9.3 Question 27
00:10:35 NCERT Exercise 9.3 Question 28 (Method 1)
00:26:47 NCERT Exercise 9.3 Question 28 (Method 2)
00:33:27 NCERT Exercise 9.3 Question 29
00:38:56 NCERT Exercise 9.3 Question 30
00:42:48 NCERT Exercise 9.3 Question 32
00:44:46 NCERT Exercise 9.3 Question 31

9(I) || Derivations & Basics for Special Series

00:00:00 Introduction to Special Series
00:02:08 Sum of first n natural numbers
00:03:46 Inspirational Story of Mathematician Gauss when he was in elementary school told by Prof. Arvind Gupta
00:08:40 Sum of Squares of first n natural numbers
00:18:36 Sum of Cubes of first n natural numbers
00:26:42 Summary of Lecture

9(J) || NCERT Exercise 9.4 Example 19

00:01:30 NCERT Exercise 9.4 Question 1 (Method 1)
00:08:21 NCERT Exercise 9.4 Question 1 (Method 2)
00:16:28 NCERT Exercise 9.4 Question 2
00:30:00 NCERT Exercise 9.4 Question 3
00:39:32 NCERT Exercise 9.4 Question 4
00:50:42 NCERT Exercise 9.4 Question 5
00:55:00 NCERT Exercise 9.4 Question 6
00:59:49 NCERT Exercise 9.4 Question 7
01:08:42 NCERT Exercise 9.4 Question 8
01:13:42 NCERT Exercise 9.4 Question 9
01:16:32 NCERT Exercise 9.4 Question 10
01:22:22 NCERT Example 19 Chapter 9

9(K) || Miscellaneous Exercise (Q1 to Q10)

00:00:21 NCERT Miscellaneous Exercise Question 1
00:03:32 NCERT Miscellaneous Exercise Question 2
00:09:22 NCERT Miscellaneous Exercise Question 3
00:13:20 NCERT Miscellaneous Exercise Question 4
00:19:40 NCERT Miscellaneous Exercise Question 5
00:29:40 NCERT Miscellaneous Exercise Question 6
00:33:00 NCERT Miscellaneous Exercise Question 7
00:38:30 NCERT Miscellaneous Exercise Question 8
00:41:00 NCERT Miscellaneous Exercise Question 9
00:44:10 NCERT Miscellaneous Exercise Question 10

9(L) || Miscellaneous Exercise (Q11 to Q17)

00:00:20 NCERT Miscellaneous Exercise Question 11
00:13:52 NCERT Miscellaneous Exercise Question 12
00:19:12 NCERT Miscellaneous Exercise Question 13
00:26:52 NCERT Miscellaneous Exercise Question 14
00:38:02 NCERT Miscellaneous Exercise Question 15
00:42:52 NCERT Miscellaneous Exercise Question 16
00:52:19 NCERT Miscellaneous Exercise Question 17

9(M) || Miscellaneous Exercise (Q18 to Q24)

00:00:14 NCERT Miscellaneous Exercise Question 18
00:12:43 NCERT Miscellaneous Exercise Question 19
00:20:23 NCERT Miscellaneous Exercise Question 20
00:27:13 NCERT Miscellaneous Exercise Question 21
00:33:43 NCERT Miscellaneous Exercise Question 22
00:36:43 NCERT Miscellaneous Exercise Question 23
00:47:43 NCERT Miscellaneous Exercise Question 24

9(N) || Miscellaneous Exercise (Q25 to Q32)

00:01:08 NCERT Miscellaneous Exercise Question 25
00:16:02 NCERT Miscellaneous Exercise Question 26
00:28:42 NCERT Miscellaneous Exercise Question 27
00:34:33 NCERT Miscellaneous Exercise Question 28
00:39:19 NCERT Miscellaneous Exercise Question 29
00:44:31 NCERT Miscellaneous Exercise Question 30
00:48:12 NCERT Miscellaneous Exercise Question 31
00:52:35 NCERT Miscellaneous Exercise Question 32

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