Inverse of a 3x3 Matrix | Co-factor Method

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  • Опубликовано: 2 янв 2025

Комментарии • 167

  • @siddharthrao5396
    @siddharthrao5396 11 месяцев назад +314

    2024 attendence like this comment

  • @susannegangata4146
    @susannegangata4146 10 месяцев назад +83

    Thank you but i think you made a mistake on the second row and second column digit it should be 16 not -8 because we said -4 x -3 = 12 then 2 x -2 which is -4 12--4 = 15... and the other one 2nd row 3rd column answer shld be 28

    • @GarangMarek
      @GarangMarek 9 месяцев назад +2

      The second statement is wrong

    • @mikekabamba-tt9pg
      @mikekabamba-tt9pg 8 месяцев назад +2

      It's true you're the one who missed the concept

    • @usmanjamilu9117
      @usmanjamilu9117 8 месяцев назад

      He is right the teacher made alot of mistake

    • @rashidissa5887
      @rashidissa5887 8 месяцев назад +2

      I have revisited the sum. I agree with you, but once again I beg we forgive the tutor.

    • @rashidissa5887
      @rashidissa5887 8 месяцев назад

      ​@@usmanjamilu9117Not a lot. Me, I confirm only 2, and both in row 2 columns 2&3

  • @David-k5k5s
    @David-k5k5s 9 месяцев назад +13

    Good job done.But there was a mistake

  • @angelakaureaa1341
    @angelakaureaa1341 9 месяцев назад +7

    I didn't attend some of my matrix classes but when i watch this tutorials it really helps me alot.
    Much appreciated thanks 👍

    • @iqinitiative
      @iqinitiative  9 месяцев назад +1

      You're very welcome!

    • @LearnAndGrowOnline
      @LearnAndGrowOnline 9 месяцев назад

      Watch my matrices video on Learn and grow ruclips.net/video/VLaG4a0-Afo/видео.html

  • @sallu_gaming444
    @sallu_gaming444 2 месяца назад +9

    Legends are watching last night before exams 😂

    • @goldiedaily
      @goldiedaily Месяц назад

      😂😂😂

    • @Al-Hussainy
      @Al-Hussainy 18 дней назад

      Im doin it 3 hours prior to the exam 😂

  • @WafiAhmed-z3l
    @WafiAhmed-z3l Год назад +37

    Great video! I think you made one mistake at 9:23 though, where you get -8 it should be +16: (12- (-4)), and where you get 4 you should get +28: -(-16 -12).

    • @iqinitiative
      @iqinitiative  Год назад +7

      Yes I've seen the mistake. Thank you for the correction 👍

    • @legitcolloh
      @legitcolloh 11 месяцев назад +3

      ​@@iqinitiative also at 9:10 you made a mistake it should be
      (12-(-4))
      (12 + 4)
      =16

    • @faithmumo6849
      @faithmumo6849 10 месяцев назад

      I had already asked the same 😲,,sikua nimeona hii thanks

    • @legitcolloh
      @legitcolloh 10 месяцев назад

      @@faithmumo6849 hizo negatives na positives hukuwa tricky sana 😂

    • @rashidissa5887
      @rashidissa5887 8 месяцев назад

      They are tricky. I forgive the tutor. Erring is human. To me, he has done good. I have understood every thing

  • @HUSS_BOSS
    @HUSS_BOSS 9 месяцев назад +3

    9:07 correction, here its not -12 but 12 since -3*-4 = 12, leading to the result of 16 not -8

    • @iqinitiative
      @iqinitiative  9 месяцев назад

      Yes. Thanks

    • @ChishalaKambole
      @ChishalaKambole Месяц назад

      I thought that I was the one who went wrong
      Yes it's 16 not -8

  • @abdel_ettaoussi
    @abdel_ettaoussi 13 дней назад

    thank you brother❤️

  • @CharityKyabanasha
    @CharityKyabanasha Год назад +3

    ❤❤❤❤thanks so much have understood all the steps ❤❤❤😊😊God bless you❤

    • @iqinitiative
      @iqinitiative  Год назад +1

      Glad it helped. You're most welcome 😊

    • @aminayunusah7163
      @aminayunusah7163 6 месяцев назад

      ei u understood with all those mistakes 😅

  • @YVONNETEMBO-j8n
    @YVONNETEMBO-j8n 10 месяцев назад +1

    Thank you for the well explained work

  • @Anuukhan07
    @Anuukhan07 19 дней назад +1

    Exams se ek raat phle wale students😂😂Me

  • @willbeehbardaniell
    @willbeehbardaniell 2 месяца назад +1

    im writing my final exam on monday last maths module on m studies hope to pass it and thank you for this awesome video in just 15 minutes i understand everything

    • @iqinitiative
      @iqinitiative  2 месяца назад

      All the best in your examination

  • @BruceShiluubwe
    @BruceShiluubwe 3 месяца назад

    job well done. well presented, keep it up

  • @kerryodjugo5464
    @kerryodjugo5464 4 месяца назад

    Thanks for unveiling the concepts step by step.

  • @MILFORDMEYAMAHNAIK
    @MILFORDMEYAMAHNAIK 8 месяцев назад +1

    It's really helpful need more on this type of solutions.

  • @veselinstoychev791
    @veselinstoychev791 Год назад +1

    2:32 Is this negative 2 or positive 2 ? thanks

  • @luna_man
    @luna_man 6 месяцев назад

    awsome video... love it ❤
    9:14 it will 16 insted of -8 but no problem we all are humans and humans do mistaked. but over all video is great 😊

    • @iqinitiative
      @iqinitiative  6 месяцев назад +1

      Yes, you are right. Thank you.

  • @rebeccaolebogengkwailane9813
    @rebeccaolebogengkwailane9813 3 месяца назад

    Great, thank you

  • @tafaralynolmadhosi8656
    @tafaralynolmadhosi8656 Год назад +2

    Thank you

  • @AlumbweChibangula-ob9gv
    @AlumbweChibangula-ob9gv Год назад +4

    I wasn't understanding this topic but after watching your video sir, I can solve it without any problem.

  • @tafaralynolmadhosi8656
    @tafaralynolmadhosi8656 Год назад +2

    Thank you sir

  • @Butorire
    @Butorire 7 месяцев назад +2

    second raw second column -4*-3 - (-2*2)=16

    • @KakashiSensi-p5v
      @KakashiSensi-p5v 7 месяцев назад

      Yeah Bro you are correct i also had a same issue then i crosscheck my answer its 16 only

  • @gregorychingamuka8651
    @gregorychingamuka8651 29 дней назад +2

    2024 watching 2024 thanks 🙏 to the almighty God am still breathing

  • @Habtam-n9s
    @Habtam-n9s Месяц назад

    is it possible to find the inverse using Cramer's rule?and could you give me some examples how to find the determinant of 3*3 matrix using Laplace's development theorem?

  • @khalidulhasan761
    @khalidulhasan761 11 дней назад

    I have my pre board today at 12.30 😍nd i am watching this at 9.15

  • @SnrKale
    @SnrKale 9 месяцев назад

    Thanks

  • @ShelagoBhunex
    @ShelagoBhunex 5 месяцев назад +3

    2024 im here thanks a lot brotherman

  • @TaofeekAbdulazeez
    @TaofeekAbdulazeez Год назад +5

    Wow! This was really helpful
    I also like this approach than the other identity method

  • @ibrahimidris433
    @ibrahimidris433 Год назад +26

    Thanks for the steps but there is a little mistake you got -8 instead of 16 and still got 4 instead of +28

  • @kelvinwanzala6311
    @kelvinwanzala6311 17 дней назад +1

    How did you get the 4? :: -(-16-12)

  • @caysiustomagau
    @caysiustomagau 7 месяцев назад

    We all make mistakes.. But the idea is very clear and halpfull. Thanks a lot for the video ❤

  • @akoterryeyong8259
    @akoterryeyong8259 Год назад +2

    Thank you so much sîr 🙏🙏💎✨

  • @ttheimmanuella
    @ttheimmanuella Год назад +3

    Thanks so much. I really learnt a lot

  • @77vik
    @77vik Год назад +2

    Thank you so much for the help man

  • @TinyefuzaJamil
    @TinyefuzaJamil Год назад

    I have liked the lesson

  • @RevanZ41
    @RevanZ41 8 месяцев назад

    Thank you so much sir.

  • @prescillamashaba
    @prescillamashaba Год назад +4

    it really helps me but i think theres error at the second column second row

  • @ChizawuChiteta
    @ChizawuChiteta Месяц назад

    Thank you Sir very much 🙏, you only made a mistake in raw 2 colum 2 the answer is 16 not -8 thank you 🙏🙏

  • @RinoshaNaushad
    @RinoshaNaushad Год назад +2

    Superb explanation sir thanks a lot

    • @iqinitiative
      @iqinitiative  Год назад +1

      You're welcome. I'm glad it was helpful 😊

  • @btsforlife8856
    @btsforlife8856 Год назад +4

    Sir your explanation was soo good, though there was a mistake. Thank you sir😊

  • @anamlicha143
    @anamlicha143 9 месяцев назад +1

    second row third column also has error

  • @sharmfernando3040
    @sharmfernando3040 Год назад +1

    Thank you!

  • @ChaChaK-hy3lu
    @ChaChaK-hy3lu 7 месяцев назад +2

    Thanks fir the solution but why did 3*-2 turn into a positive 6😢

  • @josephtagg9263
    @josephtagg9263 Год назад +1

    Thank you very much. This helped out a lot!

  • @genatto
    @genatto 10 месяцев назад

    Thanks you so much. and bro there a mistake 9:15 (-4x-3)-(2x-2)=16

  • @onesmuspandu771
    @onesmuspandu771 Год назад +1

    🤩🤩🤩🤩

  • @Abdullah_gujjar
    @Abdullah_gujjar Год назад +1

    thanks sir

  • @obasolaIbrahim
    @obasolaIbrahim 10 месяцев назад +1

    What if the determinant is 0
    How do we get the inverse

    • @dorcasedoh
      @dorcasedoh 10 месяцев назад +1

      What I know is if the determinant is 0, then the matrix given does not have an inverse

    • @iqinitiative
      @iqinitiative  10 месяцев назад +1

      A matrix with zero determinant is called a Singular matrix and it's inverse cannot be obtained.

  • @faithmumo6849
    @faithmumo6849 10 месяцев назад +2

    I have a question sir,,why is it not+4 yet it is+-+

    • @erraticcontent4312
      @erraticcontent4312 10 месяцев назад

      + means to keep the sign as it is and the - means to change the sign , hope this makes sense

  • @simplevideoskannada6825
    @simplevideoskannada6825 9 месяцев назад

    Thank you sir🎉

  • @davethetrader10
    @davethetrader10 10 месяцев назад +1

    Thank you Sir…Row 2 column 3 should be -28 Sir…I think you made a mistake there

    • @LusandaThabethe
      @LusandaThabethe 10 месяцев назад

      and also row 2 column 2 should be 16

    • @---lw1mr
      @---lw1mr 9 месяцев назад

      Positive 28

  • @soremekunadesola1566
    @soremekunadesola1566 Год назад +1

    This is helpful

  • @KyeyuneSudais-ou4ml
    @KyeyuneSudais-ou4ml 8 месяцев назад +1

    Where did you get that det of 18 please Sir

  • @daviskipchirchir1357
    @daviskipchirchir1357 Год назад +7

    There is a slight mistake where you get 4 instead of 28

  • @BirdmanOsei
    @BirdmanOsei 8 месяцев назад +3

    The mistake started from the signs that he wrote in red,the last 1 shld be all positive 😅

  • @techhassan1964
    @techhassan1964 8 месяцев назад

    9:17 the is 16 not negative 8

    • @shivam4870
      @shivam4870 7 месяцев назад +1

      Yeah my bro that is 16 😢 I think I made mistake and sitting in depression for an hour then I read comments he made mistake 😢

  • @MatipaEdward
    @MatipaEdward 7 месяцев назад +1

    Am just behind with how to transponse

    • @iqinitiative
      @iqinitiative  5 месяцев назад

      Rows become columns and columns become rows

  • @yakobowambura
    @yakobowambura 9 месяцев назад

    Thanks sir but you missed some of -+-

  • @yinhlewendy7086
    @yinhlewendy7086 Год назад +2

    Thank you,10 minutes before my test

    • @iqinitiative
      @iqinitiative  Год назад +1

      You're welcome. Wishing you the best 👍

  • @anamikakumari1786
    @anamikakumari1786 Год назад +2

    Yrr Q galat solve kiya hua hai
    Process shi hai 👍

  • @DIVINERAW
    @DIVINERAW 3 месяца назад

    I’m not able to understand the last steep

    • @lungimthombothi3163
      @lungimthombothi3163 3 месяца назад

      You change the rows to be columns and the columns to rows ,hope you understand

  • @TigistuZekarias
    @TigistuZekarias 11 месяцев назад

  • @MartinSidada-om5hp
    @MartinSidada-om5hp 10 месяцев назад

    👍

  • @nelsonwanyonyi1907
    @nelsonwanyonyi1907 Год назад +2

    For cofactor for element -1 is -4x-3 not 3

  • @BenjaminAkraba
    @BenjaminAkraba 11 месяцев назад

    Please what about cofactors of 4x4 matrix all your videos are 3x3 please provide 4x4

  • @russellpetrus122
    @russellpetrus122 Год назад +2

    so -12+4 is equals to -8 or 16.. please come through guys

    • @iqinitiative
      @iqinitiative  Год назад +2

      It was a slight mistake in solving. Kindly correct it.

    • @AbethKaulga
      @AbethKaulga 7 месяцев назад

      Big ting is the concept, thanks for you correction

  • @anilgupta4801
    @anilgupta4801 Год назад +2

    M22 will be 16 instead of -8

    • @iqinitiative
      @iqinitiative  Год назад

      Yes. I've seen the mistake. Thank you for the correction.

  • @fadhili9050
    @fadhili9050 9 месяцев назад

    umefanya nika question calculator yangu😢😢

  • @lamminhial9966
    @lamminhial9966 7 месяцев назад

    The determinate is wrong, it's supposed to be 38 instead of 18

  • @SubhamPradhan-jb3lz
    @SubhamPradhan-jb3lz 5 месяцев назад

    2029 me attend karne wale comment kara

  • @KarthikaVarun-wk1bg
    @KarthikaVarun-wk1bg Месяц назад

    Hi

  • @ayanrosey8597
    @ayanrosey8597 Год назад +1

    Is this a kenyan

  • @SHIVA.......TECH....TELUGU
    @SHIVA.......TECH....TELUGU Год назад +2

    I have idea thise questions....

  • @Zanda_from_Zim23
    @Zanda_from_Zim23 9 месяцев назад +1

    Thank you sir

  • @MuhawenimanaBeatrice-iu4lo
    @MuhawenimanaBeatrice-iu4lo 8 месяцев назад

    Thank sir

  • @kandlapallibharathkumar4934
    @kandlapallibharathkumar4934 3 месяца назад

    Thanks