Matrices Class 12 Maths | NCERT Chapter 3 | CBSE JEE | One Shot |हिंदी में

[@dikshajain2778]

0:00 Introduction 0:41 What are Matrices? 2:07 Disclaimer-Imp: or not? 2:35 Why representation through matrices? 5:01 Matrices(Basics): Example + Terminologies 10:12 General form of a Matrix 13:51 Representing data in a matrix form (diff. ways) 18:36 Question 1 18:46 Question 2 23:22 Question 3 27:20 Types of Matrices 34:55 Equality of Matrices 35:59 Question 1 38:56 Operation on Matrices 39:08 Operation on Matrices: Addition 43:16 Operation on Matrices: Subtraction 45:09 Properties: Addition + Subtraction 47:28 Question 1 50:41 Operation on Matrices: Scalar Multiplication 51:09 Question 1 52:44 Properties: Scalar Multiplication 53:23 Question 2 55:41 Negative of a Matrix through Scalar Multiplication 56:16 Operation on Matrices: Multiplication: concept 1:01:44 Multiplication: Method 1:03:38 Question 1 1:14:24 Question 2 1:17:18 Question 3 (word problem) 1:19:59 The zero game (Null matrix as product through multiplication of two non null matrices) 1:22:47 Multiplication: Properties 1:24:45 Transpose of a matrix 1:25:28 Properties: Transpose of a matrix 1:26:57 Example 1:27:32 Question 1 1:29:30 Symmetric Matrix 1:29:51 Example 1:30:16 Skew Symmetric Matrix 1:30:35 Example 1:31:33 Theorem: Symmetric Matrix & Skew Symmetric Matrix 1:32:51 Question 1 1:34:39 Elementary operation(Transformation) on Matrices 1:42:50 Invertible Matrices 1:44:52 Example 1:54:17 End

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[@pritamingjal99]

1:50:16 Row transformation will be R2 ----->1/5 R2

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Exactly what I was searching for in the comments, I thought I was wrong before 🤦‍♀️🤦‍♀️

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[@tanvi5436]

Ma'am I didn't understand one thing. On 1:19:01 we have taken these two matrices. Since we are only given the data and we make matrix B as A and A as B, then our answer completely changes, i.e as it's in m*n (1*3) order and n*p (3*1) order resulting into m*p order of C (1*1) and now with opposite row and coloum it will be the opposite resulting into C (3*3). I hope you got my question. How will we understand when do we have to take out 3*3 and when 1*1 here because if the Matrices are changed the order completely changes.

[@saeemuthe2387]

Whenever we are multiplying any two matrices, example : a x b and b x c. there is one mandatory condition that we have to follow be have to see that if b=b, as in given example the condition is satisfied. a x c will be the order of the product of two matrices. Example: If order of A matrix is 4 x 2 and B matrix is 2 x 6. Here the condition is satisfied 2=2 and the order of the product is 4 x 6. If condition is not satisfied the product of the Matrices does not exist.

[@priyanshu.kumar1233]

I am also having that exact same doubt.

[@san3502]

@@saeemuthe2387 in that given question, ma'am has taken 1*3 as the order of first matrix and 3*1 as the second right! If we are taking first matrix ie, about the books as 3*1 and price matrix as 1*3 then also this condition is satisfied..no.. I'm bit confused! Can you answer this one also..

[@san3502]

@@saeemuthe2387 is that because we wanted a 1*1 matrix as our final answer?

[@aadinamshikar5609]

while finding the product AB is not equal to BA so it does not matter that order of AB is not the same as order of BA

[@anshvachhani5829]

Small correction at 1:50:15 R2>-1/5R2, here by mistake ma'am wrote R2>-1/5R1 so please make note of this!!!

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1:50:15 R2 --> 1/5 R2 ,. Lesson is amazing grateful to have mam like you ❣️

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-1/5

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0:00​ Introduction 2:40​ What are Matrices? 3:25​ Representation of data in Matrice form 5:07​ Mathematical form of Matrices 5:25​ Representing Matrices:Examples 7:15​ Order of a matrix 10:16​ General form of a Matrix 13:53​ Represent data in matrix form 18:37​ Question 1 20:48​ Question 2 23:38​ Question 3 27:23​ Types of Matrices 27:46​ Column Matrix 28:44​ Row Matrix 29:03​ Square Matrix 31:39​ Diagonal Matrix 32:48​ Scalar Matrix 33:40​ Identity Matrix 34:32​ Null Matrix 34:47​ Equality of matrices 36:08​ Question 1. 39:01​ Operation on Matrices 40:05​ Addition of Matrices 42:04​ Addition of Matrices:Example 43:18​ Subtraction of Matrices 43:56​ Subtraction of Matrices:Example1 45:09​ Communtative Law 46:00​ Associative Law 46:29​ Additive Identity 46:49​ Additive Inverse 47:29​ Example 1. 50:43​ Multiplication of Matrix with a Scalar 51:10​ Multiplication of Matrix with a Scalar:Example1 52:46​ Properties of Scalar Multiplication 53:23​ Multiplication of Matrix with a Scalar:Example2 55:44​ Negative of a Matrix 56:32​ Multiplication of Matrix 57:58​ Multiplication of 2 matrices:Concept 1:01:46​ Mathematicaly Multiplication of 2 Matrices 1:03:33​ Multiplication of 2 Matrices:Example1 1:14:25​ Multiplication of 2 Matrices:Example2 1:17:16​ Multiplication of 2 Matrices:Question1 1:20:04​ Zero matrix:Product of two non-zero matrices 1:22:47​ Properties of multiplication of matrices 1:24:49​ Transpose of a Matrix 1:25:33​ Properties of Transpose of Matrix 1:26:59​ Transpose of a Matrix:Example 1 1:27:33​ Question1 1:29:30​ Symmetric matrix 1:29:51​ Symmetric matrix:Example 1:30:18​ Skew-Symmetric Matrix 1:30:36​ Skew-Symmetric Matrix:Example 1:31:34​ Theorems 1:32:52​ Question 1 1:34:40​ Elementary (Transformations) of a Matrix 1:42:52​ Invertible Matrices 1:44:36​ Inverse of a matrix using elementary transformation

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1:50:17 R2--->1/5R2. Hoga 1/5 R1 nahi (R ke baat jo number h vo niche likhna h R ke)

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@@tuphodega3551 no it does matter...in the otherwise case the order of the answer will be 3×3

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0:41 What are Matrices? 2:07 Disclaimer-Imp: or not? 2:35 Why representation through matrices? 5:01 Matrices(Basics): Example + Terminologies 10:12 General form of a Matrix 13:51 Representing data in a matrix form (diff. ways) 18:36 Question 1 18:46 Question 2 23:22 Question 3 27:20 Types of Matrices 34:55 Equality of Matrices 35:59 Question 1 38:56 Operation on Matrices 39:08 Operation on Matrices: Addition 43:16 Operation on Matrices: Subtraction 45:09 Properties: Addition + Subtraction 47:28 Question 1 50:41 Operation on Matrices: Scalar Multiplication 51:09 Question 1 52:44 Properties: Scalar Multiplication 53:23 Question 2 55:41 Negative of a Matrix through Scalar Multiplication 56:16 Operation on Matrices: Multiplication: concept 1:01:44 Multiplication: Method 1:03:38 Question 1 1:14:24 Question 2 1:17:18 Question 3 (word problem) 1:19:59 The zero game (Null matrix as product through multiplication of two non null matrices) 1:22:47 Multiplication: Properties 1:24:45 Transpose of a matrix 1:25:28 Properties: Transpose of a matrix 1:26:57 Example 1:27:32 Question 1 1:29:30 Symmetric Matrix 1:29:51 Example 1:30:16 Skew Symmetric Matrix 1:30:35 Example 1:31:33 Theorem: Symmetric Matrix & Skew Symmetric Matrix 1:32:51 Question 1 1:34:39 Elementary operation(Transformation) on Matrices 1:42:50 Invertible Matrices 1:44:52 Example 1:54:17 End

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1:50:15 it will be R2 implies 1/5 R2...not R1. THANKYOU

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At 1:54:00, the second transformation shows R2 -> 1/5 R1 Shouldn't it be R2 -> 1/5 R2 ?

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Timestamps: 0:00 Introduction 2:40 What are Matrices? 3:25 Representation of data in Matrice form 5:07 Mathematical form of Matrices 5:25 Representing Matrices:Examples 7:15 Order of a matrix 10:16 General form of a Matrix 13:53 Represent data in matrix form 18:37 Question 1 20:48 Question 2 23:38 Question 3 27:23 Types of Matrices 27:46 Column Matrix 28:44 Row Matrix 29:03 Square Matrix 31:39 Diagonal Matrix 32:48 Scalar Matrix 33:40 Identity Matrix 34:32 Null Matrix 34:47 Equality of matrices 36:08 Question 1. 39:01 Operation on Matrices 40:05 Addition of Matrices 42:04 Addition of Matrices:Example 43:18 Subtraction of Matrices 43:56 Subtraction of Matrices:Example1 45:09 Communtative Law 46:00 Associative Law 46:29 Additive Identity 46:49 Additive Inverse 47:29 Example 1. 50:43 Multiplication of Matrix with a Scalar 51:10 Multiplication of Matrix with a Scalar:Example1 52:46 Properties of Scalar Multiplication 53:23 Multiplication of Matrix with a Scalar:Example2 55:44 Negative of a Matrix 56:32 Multiplication of Matrix 57:58 Multiplication of 2 matrices:Concept 1:01:46 Mathematicaly Multiplication of 2 Matrices 1:03:33 Multiplication of 2 Matrices:Example1 1:14:25 Multiplication of 2 Matrices:Example2 1:17:16 Multiplication of 2 Matrices:Question1 1:20:04 Zero matrix:Product of two non-zero matrices 1:22:47 Properties of multiplication of matrices 1:24:49 Transpose of a Matrix 1:25:33 Properties of Transpose of Matrix 1:26:59 Transpose of a Matrix:Example 1 1:27:33 Question1 1:29:30 Symmetric matrix 1:29:51 Symmetric matrix:Example 1:30:18 Skew-Symmetric Matrix 1:30:36 Skew-Symmetric Matrix:Example 1:31:34 Theorems 1:32:52 Question 1 1:34:40 Elementary (Transformations) of a Matrix 1:42:52 Invertible Matrices 1:44:36 Inverse of a matrix using elementary transformation

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mam at 1:50:22 , it will be R2=1/5*R2

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1:17 if you multiply row matrix with columns matrix then you will get 3*3 matrix, but if you multiply column matrix with row matrix you will gat 1*1 matrix and this 1*1 matrix is equal to the sum elements of main diagonal of initial 3*3 matrix.

[@abhishekbose7674]

Ma'am idk whether u will see my comment or not but in the inverse matrix sum, u should have written apply 1/5R2 rather than 1/5R1 cuz even if we do it that way the sum will change a Lil bit atlast .... 🙏

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@@kapil9835 👍🏼

[@prakulchauhan2924]

1:02:49 Agar koi matrix A ( 2×4) order ki h aur koi dusri matrix B ( 4×3 ) order ki h toh AB = Matrix ( 2× 3) order ki hogi pr ye toh possible hi nhi h. Agar first matrix k column = second matrix ki row Then must check First matrix ki row = second matrix k coulmn k

[@ajinkyatare8894]

Ma'am ,I have a doubt regarding question [q.1 ] -find the values of x y z from the following i.e x+y z ,5+z = second matrix i.e 6 2,5 8 ...but what if the order of the matrices is different then how to find the values?

[@rishizip]

just follow the same process

[@jatinpatel8923]

Great teaching mam.Really thankful for your teaching 😇

[@rampariyar3659]

Ma'am you are great 😊😊😊😊😊

[@nandanikumari1211]

Really.. I am impressed by this channel ☺️☺️☺️ This channel is really amazing 😍😍 for a science student ☺️👍☺️ Because everything is available here....

[@nandanikumari1211]

.....

[@sunilsahagal608]

kzbin.info/www/bejne/fIuzZJyeYr56etk

[@swatishergill]

I agree one shot me concept clear, but mujhe ye channel bahut late me mila, that's why 👍👍👍👍👍

[@PrithwirajSen-nj6qq]

Time starts -- 48 Problem 1 It proves associative property A +( B - C) = (A +B) -C =(A - C) + B This may be proved according to associative property Once again we may prove A +(B - C) =(B - C) + A in accordance with commutative property.

[@its_mohdsam]

Bca students kon kon dekh raha he lagao attendence😅😅😂

[@Umesh_Tech_1111]

Ok sir

[@Ishankgaming943]

H Bhai

[@PareshPradhan-g7i]

Present sir

[@ramPratap-f4z]

OK sir

[@KashishSehgal-p6c]

M bhi bca vali hu

[@erenplayzmc9452]

1:50:22 a small correction, it should be R2-->(1/5)(R2). Thank you for the explanation

[@marutipatil8866]

BEST EX. IS { R.C.B.} I.e rows,columns,bracket

[@shivisharma2883]

Your way of explanation is brilliant mam..... I just loved the way you clear the doubts..... Thank you so much .. The videos are so helpful.... You are blessed with such a gift of teaching .... Your teaching skills are really praiseworthy .❤✨😍✨❤❤❤❤❤❤

[@Shubham-qn5ck]

Oh... Nice... Hope... You... Understood... The... Chapter... 🤣🤣🤣

[@allinoneallinone3740]

Hii subi

[@gargi6078]

Kudos to your extraordinary talent Ma'am!!! That's what is benefitting more than lakhs of student !!!!

[@sunilsahagal608]

kzbin.info/www/bejne/fIuzZJyeYr56etk

[@user-scaryfather]

Fantastic explanation.. thanku

[@archanapatil4093]

Thanks mam this video was very helpful ☺️

[@krishnapriyams8938]

Excellent class Really fantastic

[@Cutiee---36]

Best teacher in life....😊 Mam best teaching, support always God bless you ❤

[@shreyjitsinhvala4799]

Surely we will complete our 12 th with learn-O-hub.

[@care_channel1661]

Yes😅

[@AMITSHARMA-jl2ue]

What we see simple behind it there is a lot of hard work of learnohub. Thanks ma'am.

[@hitanshijain2827]

@@ksr6787 of course, you'll need to practice questions. These videos are enough for going through the chapters and learning the concepts.☺️

[@labdhilodha291]

Very nice explaination....Thank you so much mam...😁🥰

[@ishietasingh5703]

Your videos help me a lot❤️

[@satwikchakravarty1888]

Let me help

[@TheGenzceo]

Ya

[@arianhaque1873]

Its really helpful 🙂

[@mohsinroyalgaming2440]

Very understandable explanation 👌 👍

[@adeelmukhtar9351]

Mam I'm just speechless of how good of a teacher u are. Good bless you mam, we Students are always with you ❤️

[@Kira-cw1yp]

It's ma'am

[@babinanj2303]

@Kiephaau tJEE hi

[@sunilsahagal608]

kzbin.info/www/bejne/fIuzZJyeYr56etk

[@Harshita__31]

may everyone get 90+ in maths

[@shreeomdubeydubey9803]

Yes 100 in 10th

[@jktechinfo5728]

Ma'am really u r a genius.... U have wonderful sense of teaching... I salute u ma'am.. U r doing a good job.

[@SHUBHAMGUPTA-sb3uf]

MAM .....THANK YOU SO MUCH ......IT HELPS ME A LOT ......I HAVE NO WORDS TO DESCRIBE YOUR TEACHING STYLE......ONLY I CAN SAY IS THAT. ..KEEP IT UP ......WE ALL SUPPORT YOU ...

[@aasthapandey3064]

mam osm lecture 😍😍😍

[@hersheysss748]

Thank you ma'am... you made chapter CRYSTAL CLEAR!!!

[@priyankajoshi6551]

Thank you ma'am it is really a good introduction of matrices how easily u explained it. I wanna ask u that how r u intelligent in every sub. I know it is a strange question but I'm curious to know

[@nfs_subham]

It's really helpful 😍😁😍😁😁😍

[@priyanshusingh-fb2ll]

thankyou so much for this 1 shot video

[@maryammomin5480]

She's a great teacher... She know how to teach 🤔

[@subhroneelganguly2580]

18:36 Question 1. Orrder will be 4x3

[@rajatarya3216]

Always best 💖💖🤗

[@shak_sea702]

Thankyou so much mam🙏❤️

[@bittusingh9842]

Hay..

[@futurestress7154]

Hello sweetie 😘

[@sunilsahagal608]

kzbin.info/www/bejne/fIuzZJyeYr56etk

[@mrentertaineryt]

1:19:00 mam isme yeh kaise pta lga ki matrix row me Leni hai ya column me #doubt

[@vinuthahm8631]

Hi mam, ur really great.....🙏🙏 You are the one who inspired a lot to me mam. If you don't mind can you please explain in English mam it's helpful a lot for all the student because English is easy to understand and more comfortable than hindi.......☺️

[@sandeepsangwan8003]

Bhai hindustan h ye not british

[@anujpai]

@@sandeepsangwan8003 bruh 💯

[@vijayam9383]

People from another state can also understand right it's not about hindusthan or British

[@krishnapriyams8938]

It's right !!!

[@techworldelite160]

We should learn Hindi 👍🏼

[@priyankas4029]

Ur a great teacher💜 mam Thank you for helping me mam I'm very grateful for this😍🤗

[@caaspirants6267]

Mam 38:46 me agar (x-y)square = (x+y)square - 4xy form se x-y nikal ke. Phir simultaneous linear equation ki tarah solve karen toh kya hoga? Usse answer x=5, y=1, z=0 aa raha hai.

[@ayanxe18]

Kal exam hei Aj dekh rah 🐸

[@RaniVerma-Vlogs]

Same

[@ananyasingh3894]

Mam u r the one send by God to help us 🙏🙏🙏🙏

[@tanmaynerd292]

Nope, she is not sent by God ...... She herself is GOD...... - @chazing_my.dreams

[@DraKeN.-.]

1:50:16 I have a doubt here why did she multiply 1/5 with R1 it would just make R2 [0 -1] ?? plz explain🙏🏻

[@riyukoon8463]

I think 1/5 is multiplied with R2 itself. Mam has mistakenly written R1 instead of R2 👍

[@kumaradarsh_vivakshu]

when u will start making videos for new 12th students or have we study with your old videos?

[@neevdhawan4200]

there is hardly any syllabus change b/w this year and last year

[@totdekapotda5256]

Whachyu trynna say

[@u1traREX]

Ncert syllabus changes in decades.... so all the topics covered here are exact same at least for this year also..... and i predict that it might be same and significant for upcoming years also