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!!
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.
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!
I really want to thank you for your teaching, I think you are one of the best people to teach algebra. Thanks a lot.
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!!
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
SHE IS THE SMARTEST PERSON ALIVE RAHHHHHHHH
Thank you so much Miss Kimberly ❤
Wow. Blowed my mind. I am without word. Thank you for the awesome content!
was lost in the first half....but second half caught up. with love from the University Of South Africa
Thanks professor Brehm!
I hope I make it in my finals
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.
I made a coffee and now I am back to the lesson to hear her saying if you fell asleep
yes I really did
wohooo
congrats on 45k!!
Amazing videos
Thanks! Trying to inch my way to 100K
@@SawFinMath just subscribed maam, hadn't realised i had not subscribed yet.👍please dont tire
i love you so much
your explaining is amazing and you have such a nice light hearted charming personality
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
thanks a lot for the awesome content!
Impressive efforts! Thanks :)
thank you professor for making it as easy as that 🌹🌹🌹
You just got another subscriber!!
Thank you so much
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...
I'll shoot ya my venmo 🤪 Just kidding. Glad they helped!
Thank u
7:48 why does E1 and E1^-1 have no change?
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
28:40 Why the Russian flag specifically? ))
which textbook you are talking about
David Lay
on 11:50, E3 reverse should be wrong?!
yes👍
easy money
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 ?
Yep. Remember that A is invertible if and ONLY if I can reduce it to an identity matrix.
Please use a camera as it is difficult to stay focus on voice only. Eye contact prevents zone outs.
🤨
try putting a mirror next to your screen
uhhhhhh what