Matrices - Full Chapter Explanation, NCERT Solutions and MCQs | Class 12 Maths Chapter 3 | 2022-23

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✅ In this video,

✔️ Class: 12th
✔️ Subject: Maths
✔️ Chapter: Matrices (Chapter 3)
✔️ Topic Name: Matrices - Full Chapter Explanation, NCERT Solutions and MCQs | Class 12 Maths Chapter 3 | 2022-23
✔️ Topics Covered In This Video : This video by Shivani Mam will provide detailed explanation of the chapter Matrices. In this video, she will discuss and explain all the important concepts, NCERT Exercise solutions, MCQs and will also provide helpful tips on how to answer them during the exams. The video will help students to prepare for their upcoming board exams and score better in the examination.
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00:00 Introduction: Matrices
00:41 Exercise Introduction 3.1: Matrix
07:11 Order of Matrix
35:36 Raw Matrix
37:38 Square Matrix
43:14 Diagonal Matrix
46:43 Scalar Matrix
52:57 Identify Matrix
56:34 Zero Matrix
57:24 Equality of matrices
01:04:39 Question 1 to 10: Exercise 3.1 (Page No. 64): Matrices
Que.1 In the matrix A= 35 -2.
01:57:36 Exercise Introduction 3.2: Operations on Matrices
01:58:42 Addition of Matrices
02:05:30 Note: Addition of Matrices
02:08:51 Properties of matrix addition
02:14:02 Difference of matrices
02:18:33 Multiplication of a matrix by a scalar
02:22:13 Negative of a matrix
02:24:22 Properties of scalar multiplication
02:25:44 Multiplication of matrix
02:37:06 Zero matrix as the product of two non zero matrices
02:41:04 Properties of Multiplication of matrix
02:44:47 Question 1 to 3: Exercise 3.2 (Page No.80): Matrices
03:30:43 Question 4 to 12: Exercise 3.2 (Page No.81): Matrices
04:08:49 Question 13 to 19: Exercise 3.2 (Page No.82): Matrices
05:23:05 Question 20 & 22: Exercise 3.2 (Page No.83): Matrices
05:35:51 Exercise Introduction 3.3: Operations on Matrices
06:48:17 Question 1 to 5: Exercise 3.3 (Page No.88): Matrices
07:30:10 Question 6 to 10: Exercise 3.3 (Page No.89): Matrices
08:26:50 Question 11 & 12: Exercise 3.3 (Page No.90): Matrices
08:33:30 Elementary Operations (Transformation) of a Matrix
08:35:26 Three Elementary Row Operations
08:48:18 Three Elementary Column Operations
09:01:13 Invertible Matrices
09:10:18 Inverse of Matrix by Elementary Operations
09:40:10 Question 1 to 10: Exercise 3.4 (Page No. 97): Matrices
10:54:45 Question 11 to 18: Exercise 3.4 (Page No. 97): Matrices
11:51:12 Question 1 to 10: Miscellaneous Exercise (Page No. 100): Matrices
13:07:36 Question 11 to 15: Miscellaneous Exercise (Page No. 101): Matrices
13:34:35 Question 1 to 10: Multiple Choice Questions (MCQs): Matrices
Que.1 The number of all possible matrices of order 3 x 3 with each entry 0 or lis:
14:11:27 Matrices: Complete Chapter Revision
16:23:56 Website Overview
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Timestamp Description
00:00 Introduction: Matrices
00:41 Exercise Introduction 3.1: Matrix
07:11 Order of Matrix
35:36 Row Matrix
37:38 Square Matrix
43:14 Diagonal Matrix
46:43 Scalar Matrix
52:57 Identity Matrix
56:34 Zero Matrix
57:24 Equality of Matrices
01:04:39 Question 1 to 10: Exercise 3.1 (Page No. 64)
01:57:36 Exercise Introduction 3.2: Operations on Matrices
01:58:42 Addition of Matrices
02:05:30 Note: Addition of Matrices
02:08:51 Properties of Matrix Addition
02:14:02 Difference of Matrices
02:18:33 Multiplication of a Matrix by a Scalar
02:22:13 Negative of a Matrix
02:24:22 Properties of Scalar Multiplication
02:25:44 Multiplication of Matrices
02:37:06 Zero Matrix as the Product of Two Non-Zero Matrices
02:41:04 Properties of Multiplication of Matrix
02:44:47 Question 1 to 3: Exercise 3.2 (Page No. 80)
03:30:43 Question 4 to 12: Exercise 3.2 (Page No. 81)
04:08:49 Question 13 to 19: Exercise 3.2 (Page No. 82)
05:23:05 Question 20 & 22: Exercise 3.2 (Page No. 83)
05:35:51 Exercise Introduction 3.3: Operations on Matrices
06:48:17 Question 1 to 5: Exercise 3.3 (Page No. 88)
07:30:10 Question 6 to 10: Exercise 3.3 (Page No. 89)
08:26:50 Question 11 & 12: Exercise 3.3 (Page No. 90)
08:33:30 Elementary Operations (Transformation) of a Matrix
08:35:26 Three Elementary Row Operations
08:48:18 Three Elementary Column Operations
09:01:13 Invertible Matrices
09:10:18 Inverse of Matrix by Elementary Operations
09:40:10 Question 1 to 10: Exercise 3.4 (Page No. 97)
10:54:45 Question 11 to 18: Exercise 3.4 (Page No. 97)
11:51:12 Question 1 to 10: Miscellaneous Exercise (Page No. 100)
13:07:36 Question 11 to 15: Miscellaneous Exercise (Page No. 101)
13:34:35 Question 1 to 10: Multiple Choice Questions (MCQs)
14:11:27 Complete Chapter Revision

[sakshii._]

Becoz of time duration no one wants to watch this lecture but when you learn maths from this teacher you will got highest marks in boards ⚡️💯

[tamanna]

18:32 from A matrix A31 = e
From B matrix A23 = 9

[Jigyasha-vz]

7:48:26 The diagonal of a skew symmetric matrix are always zero is True

[SaritaPandey-qo]

Mam aapne ek weak student ko mathematics me brillent bana diya thank you so much mam

[derffugamer]

Not gona lie the way of teaching is brilliant keep it up 🔥 4:33:46

[Mahakal_ki_bhakt]

Today Target :- complete this before 12:00pm 🎉

[krishnayadav]

2025 ke liye kon kon ye video dekh raha hai

[shubhashishagrawal]

Mam...Apne Kafi Aache Se Explain Kiya Mujhe Yeh Topic Bilkul Samaj Nahi Aaraha Tha But Now I Am Able To Understand Matrix Thankyou So Much👍🏻

[mamtakumari]

Such a brilliant teacher bahut achche se explain krte hai Thank u so much ma'am

[PritiSingh-tffx]

Yes ma'am..true for the skew and symmetric matrices 1st they hve to square matrix then it is skew or symmetric ...

[Jigyasha-vz]

Zero matrix is both symmetric or skew symmetric matrix

[jaybhattb]

9.08.34 ans - I think that idenify matrix is always in sq matrix shape. so rectangular matrix can't be invertable matrices

[afacts]

9:29:20 Bhai te kaise hua 1-4/5 = 1/5 please Koi bta do

[PritiSingh-tffx]

True - diagonal element of skew symmetric matrix is 0 .. and the non diagonal element hve opposite sign..

[Jigyasha-vz]

14:00:12 The sum of symmetric or skew symmetric matrix= 1/2 (A+ A’)+ 1/2 ( A-A’)

[richakumari]

Thnku so much mam for ur explanation ❤

[Cric_World]

Mam question no. 14 (ii) part mai R.H.S ki resultant matrix mai 3rd row ki 2nd column ka element eleven Hao twelve nahi

[GudduKumar-nkbu]

Mam humko na bahut accha lagh video dekh ke ❤❤❤❤❤❤❤❤❤❤❤❤❤❤

[mukhtiarshah]

Mam.... I am very happy from your online Lecture...Thank ❣️