Linear Algebra 2.2.3 Elementary Matrices And An Algorithm for Finding A Inverse

[@oldmankatan7383]

Mind competely blown at 22 minutes! Wow! I wish I had been exposed to linear algebra so much earlier in life. Thank you for taking the time to really hammer home the "WHY" in your videos! It's what makes the "ah HA" moments possible!

[@ticketpirates]

Lol after watching the written version of this explanation in your video I was concerned that I was getting lost, but the problem in the 2nd half of the video was awesome seeing how all this tied together...well done Professor B!

[@V37_yt]

SHE IS THE SMARTEST PERSON ALIVE RAHHHHHHHH

[@zhyakoxalid6892]

Thank you so much Miss Kimberly ❤

[@MM-um1sq]

I really want to thank you for your teaching, I think you are one of the best people to teach algebra. Thanks a lot.

[@christophermunguia8457]

Is a) and b) of invertibility not simply explaining why Gauss Jordan's method works? All the arithmetic makes these concepts seem far more complicated than they are. It too blew my mind when I found out all you have to do is multiply a matrix by the identity, row reduce, and boom. Matrix inverse found! Iff ofc, det A does not equal 0.

[@ahmedalosais7718]

at 24:40 , it is easier if we: 1) R_3 + R_2 >> R_2 2) R_3 + R_1 >> R_1 and then (1/2)R_3 >> R_3

[@mannb1023]

first half was confusing but second half blew my mind

[@v_isforvictory9366]

was lost in the first half....but second half caught up. with love from the University Of South Africa

[@ahmedmusa517]

I made a coffee and now I am back to the lesson to hear her saying if you fell asleep yes I really did

[@sammamrariana5880]

Thank you so much, i never found the university classes useful, with your video i was able to understand all the homeworks!! you are saving livess. a legend!!

[@rafamedadesvlock7157]

Wow. Blowed my mind. I am without word. Thank you for the awesome content!

[@ifeanyiogbennaya7773]

Ngl did fall asleep that last part u mentioned before the example but I've been beinge-watching ur vids and they are so helpful

[@mikeagoya]

Thanks professor Brehm! I hope I make it in my finals

[@hamzarehman7888]

wohooo congrats on 45k!! Amazing videos

[@SawFinMath]

Thanks! Trying to inch my way to 100K

[@tino_S]

​@@SawFinMath just subscribed maam, hadn't realised i had not subscribed yet.👍please dont tire

[@zuko803]

11:05 i dont understand 5R2 = R2, why not 0, 25, 0? and also -4R3 + R1 = R3, -> -4(1) + 4=0 suppose to be 0 but why its -4?

[@tsaikuo-wei3111]

on 11:50, E3 reverse should be wrong?!

[@gameoflol4364]

thanks a lot for the awesome content!

[@javenlim5514]

7:48 why does E1 and E1^-1 have no change?

[@bedminer1]

since the row operation was a swap between R2 and R3, if you do the same swap, it just swaps back to the original state

[@ДенисРудой-ч3я]

28:40 Why the Russian flag specifically? ))

[@mannb1023]

[@hassamali2281]

Impressive efforts! Thanks :)

[@teja.jwamalwa3979]

You just got another subscriber!!

[@fluffyzozo1629]

i love you so much your explaining is amazing and you have such a nice light hearted charming personality

[@DogsAndDataRus]

Should have just given you the $1000+ I paid in tuition for my course...

[@SawFinMath]

I'll shoot ya my venmo 🤪 Just kidding. Glad they helped!

[@AshokKumar-wn9gf]

which textbook you are talking about

[@SawFinMath]

David Lay

[@csmohmmadsh3258]

thank you professor for making it as easy as that 🌹🌹🌹

[@rashedriju6990]

Thank you so much

[@Shehab_Zexas]

So how i know if inverse dont exist ? if i couldnt reach to identity matrix by row operation in left side then the matrix not invertible ?

[@nilson-cesar]

Yep. Remember that A is invertible if and ONLY if I can reduce it to an identity matrix.

[@surajvarne3992]

Thank u

[@quickclipsbysnoopy]

Please use a camera as it is difficult to stay focus on voice only. Eye contact prevents zone outs.

[@CHROMAVISION866]

🤨

[@yourgrace5514]

try putting a mirror next to your screen

[@saadafm]

easy money