Inverse of a 3x3 Matrix - (THE SIMPLE WAY)

[@iqinitiative]

Determinant of a 3x3 matrix: kzbin.info/www/bejne/oIG8pWpsf9iqaZYsi=u2tXxkbMeD-Hqa3L

[@Just_J7]

Finally. A video where it is explained easily. Others are either going to fast, skipping a step assuming we know how to do it, or both. You explained it in a nice pace and coherently.

[@iqinitiative]

I'm really glad it was helpful 😊

[@WassupCarlton]

Crispy and concise, bravo my guy! Love that you *physically covered* the elements we want to ignore when finding the intermediate determinants.

[@iqinitiative]

I appreciate it 🙏 I'm glad it was helpful

[@bechdhieu]

Thanks you so much for my adimition

[@georgen9755]

physical cover? physical education?

[@jasonwang-wg8wu]

nawwww like he actually, physically shrouds the ignored elements so that the only ones we can see are the ones we finna act on in that moment. cuts out the noise/distractions, fill me?@@georgen9755

[@Kenny-21-x8t]

what a phenomenal way of teaching the same concept...... this is the best tutorial explaining inverse of 3 by 3 matrix🔥🔥

[@iqinitiative]

Glad you liked it

[@chronicabhomis]

I have a numerical methods exam tomorrow morning... Thank you so much for your effort in helping me, God bless you, sir❤

[@iqinitiative]

You're welcome, and all the best

[@mhmmdsaralov]

this the best explanation ive ever seen. thanks a billion!

[@kylitrixgames4980]

I rarely complement KZbinrs, but you deserve some appreciation. A very clear explanation, step by step, with even a short summary at the end.

[@iqinitiative]

@@kylitrixgames4980 thank you very much. I really appreciate

[@Peter.H___]

You're such a good teacher. Something i struggled with the whole semester summarised in a 15min video. You're a genius!

[@iqinitiative]

I'm glad it was helpful. Best of luck with your exams.

[@eevibessite]

kzbin.info/www/bejne/ZmKQp2mge6ymm7M

[@donrangadanthanarayana6472]

wow , great explanation....

[@iqinitiative]

Glad you liked it!

[@KoKet-r5u]

good job

[@KwekuGyampim]

This your video will never get old, I just used it in teaching my younger sister

[@ohmshah2511]

Brilliant video!

[@КатеринаПриймак-р6п]

Thank you very much, I want you as a university prof!

[@iqinitiative]

You're welcome, I'm glad I could help! 😊

[@ahmedkhalifii]

thanks a lot. I genuinely appreciate how u made me understand this.

[@iqinitiative]

You're very welcome!

[@abbiepatriciah7505]

Simple and easy to understand. Thank you

[@iqinitiative]

You're welcome!

[@sltechnicalbro3838]

tnx sir

[@ryoshii87]

I haven't been able to attend classes during the entire final lessons and I have an exam later. You helped me a lot in understanding it in a very simplistic way. Thank you very much ^^

[@iqinitiative]

Glad I could help! All the best in your exams

[@eevibessite]

kzbin.info/www/bejne/ZmKQp2mge6ymm7M

[@muhammadmursaleen4912]

Thank you so much this is very helpful۔

[@MutatiinaMichael]

Thank you much, teacher. I have gotten it clearly and can teach my friends

[@iqinitiative]

You're most welcome!

[@Birol731]

Thank you for the excellent and well-founded explanation; it is truly exceptional 🙏

[@iqinitiative]

You're very welcome!

[@NZ-bg9ec]

THE BEST TUTORIAL ON KZbin THANK YOU SO MUCH!!!!

[@luluartbymengxuan8375]

this is indeed simple! thank you so much!

[@iqinitiative]

You're welcome!

[@Prubitube]

I assume when you multiply the inverse of the matrix and the original matrix A, you ought to get an identity matrix, I have tried to do so, but I didn't get the identity matrix, can you illustrate that part kindly. Thank you for creating this video and making it as easy to understand.

[@hailegerea5241]

excellent teacher i am understanding and nonstop

[@iqinitiative]

Glad to help

[@simonrestrepo3231]

Steps(For reference): 1. Find determinant of matrix A -> detA 2. Find the matrix of co-factors (tip: the first row was partiality fond when getting the detA) 3. Set the right sings of the matrix of cofactors. Alternatating | + - + | | - + - | | + - + | 4. Transpose the matrix to find the adjoint matrix Aadj 5. Ainverse = 1/det * Aadj

[@noyansahin2643]

dude thank you

[@MenkaEphraimMensah-lm1nn]

Sir I love the way you teach and kudos for that.

[@AymanMonther-hb7jg]

Mr. in minute 1:47 , please kindly check the solution again. In order to get the determinant you must multiply it by -6 not +6. Regards

[@Rakibul_Islam_1017]

Actually it is the rule minus-minus is plus as you can see there is a negative sign on top of -6 so -(-6) is +6. Regards

[@iqinitiative]

Check properly it's supposed to be +6

[@ayman6516]

My bad you are correct

[@OkeneJeremiah-i2q]

GOOD

[@iqinitiative]

👍

[@toluoyelola1101]

this was an amzing explanation

[@iqinitiative]

Glad it was helpful 😊

[@PhannyKasongo]

Thanks very much this is helpful

[@iqinitiative]

You're welcome!

[@rashmigairola8214]

perfect Sir, I understood everything, was struggling a lot

[@iqinitiative]

Glad it was helpful! 😊

[@ModestusHaundapiti]

Thanks much l gained alot

[@mica-my7wu]

thanks for the video.. clear explanation

[@iqinitiative]

You are welcome! 👍

[@TraderSanjay-hr7cp]

Next level explain sir ❤❤❤

[@iqinitiative]

I'm glad it was helpful 😊

[@dusabemariyagrace04]

Thank you so much you explain very well❤❤❤🎉🎉🎉

[@iqinitiative]

You're welcome 😊

[@fredrick2036]

Thanks. you really helped me in answering Advanced Mathematics =)

[@iqinitiative]

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

[@sensenlu1111]

good video to watch

[@iqinitiative]

Glad you enjoyed it

[@vincentonyango3713]

Definately the best way of explaining. Thanks alot

[@iqinitiative]

You are most welcome

[@justinadaniel4293]

Wow.... really simplified. So helpful

[@iqinitiative]

Glad it was helpful!

[@TemesgenSisay-tn9ue]

VERY VER MUCH BRO I FROM ETHIOPIAN BUT I HEARTELY APPRCIET YOUR WORK SO MUCH WELL DONE CONTINUE

[@Chivende]

He's great,he just saved my life

[@BishopJosephNgaruiya]

How you do matrix 3*3

[@swagnuts4373]

super helpful. This was the only tutorial that made sense to me, well taught

[@iqinitiative]

Glad it helped!

[@olofujustina5340]

Good job Sir

[@iqinitiative]

So nice of you

[@echibugeorgewilliam3741]

I just hve my exams next week and am already confident

[@iqinitiative]

All the best!

[@makueimajok2654]

amazing work I appreciate this video so much! wish me luck on my exam.

[@iqinitiative]

Best of luck!

[@happymakhanya]

Thank you, very nice method and easy to understand

[@franklinekipkemei5842]

Go higher sir,yôu are amazing

[@iqinitiative]

Glad it was helpful 😊

[@GhOsT-st7ch]

Thank you, i understand it more than i did, will take some time to learn fully but this is a head start

[@iqinitiative]

You can do it!

[@clownphabetstrongwoman7305]

I really appreciate this. Very methodical and clear. Yesterday I looked into matrices and made the formula for a 3x3 one. It was easy, although very tedious, and at the end I got stuff like this which is very confusing to apply. Let's say matrix |a b c| |d e f| |g h i| And the inverse would have in the place of a this: (ei-fh)/(aei-afh+bfg-bdi+cdf-ceg). Very sluggish and confusing. The whole thing is |(ei-fh) (ch-bi) (bf-ce)| |(fg-di) (ai-cg) (cd-af)| |(dh-eg) (bg-ah) (ae-bd)| With that long determinant as a fraction.

[@iqinitiative]

I'm glad you found this helpful. Best of luck 👍

[@eevibessite]

kzbin.info/www/bejne/iXe3lnSNgt6Vq6c

[@ReasonHlungwane-ry5jo]

easily undestandable when you explain it

[@thabomohlala2]

Thanks for the tutorial, I will never fail matrix calculation.

[@iqinitiative]

You're welcome. Glad it was helpful.

[@d.c.manjushree546]

Thank you so much sir

[@iqinitiative]

Most welcome

[@chistar5988]

wonderful lesson, thanks alot

[@iqinitiative]

You're most welcome

[@NokulungaMacu-uq8qu]

Thank you so much. I'm going to practice especially for mesh circuits

[@iqinitiative]

You're welcome

[@abuyusifu4774]

Thanks 🙏🏾 for letting me understanding it well 👍👍

[@tesdrexmryrsd]

Hi, this is very easy to understand!

[@bhawana_.14]

thank you for your wonderful explanation 😍😍😇

[@iqinitiative]

Glad it was helpful!

[@Abu-r1j6k]

wow thank you

[@iqinitiative]

You're welcome

[@AlmaElma-qz4ok]

Wow amazing the explanation was all I needed to understand perfectly

[@iqinitiative]

Glad it helped!

[@layanbarakat8385]

thank you so much man... absolute legend

[@suman7711]

Thanks alot

[@iqinitiative]

You're welcome

[@kavishichamodi7517]

cool!

[@iqinitiative]

👍

[@vladimircastanon9682]

If you go about, finding the inverse of a matrix this way, how would you know when a matrix is un-invertible?

[@Necabet_sofiyeva]

It should be square matrix ,then it can be invertible ,otherwise can't be

[@ElisaMensah]

Very easy to understand

[@iqinitiative]

Glad to hear that

[@kanup1000]

Thanks , very useful!!

[@iqinitiative]

Glad it was helpful!

[@ivanfurst4969]

Wow, so good, this is gonan save me so much time thank you

[@iqinitiative]

Glad it helped!

[@KatoFred-j7f]

Thanks for good lesson

[@iqinitiative]

Any time 👍

[@sadfaceemoticon5731]

This is super helpful thank you so much!

[@KD-if7sh]

life saver!!!!!!

[@iqinitiative]

🥰😊

[@AliceNabirye-p8n]

🎉why do you put the positives and negatives at the top of every column

[@iqinitiative]

That's the procedure

[@Sesseboy-ex1vo]

It was very helpful to me thank you very much

[@iqinitiative]

Glad it was helpful 😊

[@longlifelearner2005]

Thank you so much sir!!

[@iqinitiative]

@@longlifelearner2005 you're welcome

[@mangobuttercookies]

mind = blown truly a work of art

[@iqinitiative]

😊🙏

[@edwardbudodi4497]

Goood lesson sir appreciation i need a lesson of continuity function because you teach good

[@iqinitiative]

Thank you very much.

[@iqinitiative]

LIMITS & CONTINUITY: kzbin.info/aero/PLDmIzLLlFxI1cyAP7_D2GND_YIseLPE19

[@emmanueleboh4378]

@@iqinitiative

[@migizz254]

I don't have much to say... just saying thankyou very much 😇😌

[@iqinitiative]

You're welcome. 😊

[@b.m.z.3386]

All the best to author, so appreciate this video!!!!!

[@iqinitiative]

Thanks. most welcome

[@iqinitiative]

Thanks

[@jensenbelen-brown1559]

thank you, you saved me from failing ly

[@iqinitiative]

You're welcome. All the best.

[@nassershan9792]

Yeah. U are a genius bro

[@iqinitiative]

Thank you 😊

[@AymenYusuf-j6i]

Fantastic

[@iqinitiative]

👍

[@saharamursal]

This genuinely helped me thnks sir❤❤❤❤❤❤

[@iqinitiative]

Glad to hear that. You're welcome 😊

[@Aroba-yw6xd]

Thanks so much, my exam is less than 8 hours now

[@iqinitiative]

Good luck!

[@VANESSAAYESA]

This has genuinely helped me 😊..thanks

[@iqinitiative]

I'm glad it was helpful 😊

[@雪-o1k]

Very good video,❤from🇨🇳

[@iqinitiative]

Thanks 😊

[@SwaumuTwalibu-z5n]

I have gain more experience about listening this kind of matrix

[@EmmanuelIsaiah-lo3hc]

You're amazing man

[@iqinitiative]

Thank you 😊

[@OseiRegina-j8l]

Thank you so much

[@iqinitiative]

You're welcome

[@andrewnpeacechannel257]

Super correct.

[@iqinitiative]

👍

[@AngelZangata]

Wrong

[@TatendaMazhawidza]

awesome

[@iqinitiative]

👍

[@NamatovuMaggie-j7o]

Thanks sir help us with circle properties

[@iqinitiative]

No problem

[@viiarrr]

Thank you so so much u really helped me

[@iqinitiative]

Glad I could help!

[@abdullahmutto146]

Very well done thanks alot this is going to be very helpful. But I was wondering can I also use this for bigger or smaller matrix? So for 4x4 I could do + - + - for the first colome to get the det A and then do: + - + - - + - + + - + - - + - + to get the Adj * A and then divide Adj*A by the det A like shown in the video or does it just work for 3x3 matrix? Thx!

[@iqinitiative]

I'm glad it was helpful. So yes you'll need to Co-factors the way you've layed it out, it's okay.

[@eevibessite]

kzbin.info/www/bejne/iXe3lnSNgt6Vq6c

[@bongajewelmsimang5337]

fantastic video so with the inverse is there a way to determine x,y,z?

[@iqinitiative]

Yes, with the inverse you can apply: X = A‐¹ • B

[@IsratJahan-x3g6c]

is it helpfull for engineering?

[@iqinitiative]

Yes it is

[@musicphysics-mathematicsfu1840]

The only minus is that you did not demonstrate how you got 30 as your determinant...a review is hence suggested because some students are still.strugling with finding 3x3 determinants . Thank you

[@iqinitiative]

Noted with thanks. I've just added a video link in the comments that shows how to find determinant.

[@LewisNorman-k6t]

had trouble with that but now its at my fingertips thanks

[@iqinitiative]

You're most welcome

[@a7iyao]

tqvm man

[@AlbanaHoxha-ki2xv]

Thank you for this video! Is there a rule as to how you assign the signs at 6:45 ?

[@iqinitiative]

You're welcome. Basically just consider negatives in those positions at all times.

[@WassupCarlton]

odd-number rows: plus, minus, plus, minus, plus, minus... even-number rows: minus, plus, minus, plus, minus, plus...

[@iqinitiative]

Yes 🎯

[@MikeWellingtonZulu-ez6yc]

This is nice more than my lecturers

[@iqinitiative]

I'm glad it was helpful 😊

[@karimmoubayed330]

i think using the identity matrix is easier [ A | I ] where once you row reduce the matrix A to its identity matrix with respect to the identity matrix, the identy matrix becomes the inverse of matrix A. A~I, I~A^-1

[@wegohigh6804]

thank you, truly helped me!

[@iqinitiative]

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

[@CR-ri9gq]

helpful, thanks!! :))