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

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!

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!

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!!

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

first half was confusing but second half blew my mind

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

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.

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

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

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

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

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

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

SHE IS THE SMARTEST PERSON ALIVE RAHHHHHHHH

wohooo congrats on 45k!! Amazing videos

Impressive efforts! Thanks :)

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?

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

You just got another subscriber!!

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

28:40 Why the Russian flag specifically? ))

Thank you so much

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

which textbook you are talking about

Thank u

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

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 ?

easy money