Linear Algebra 11s: An Even Better Explanation for the Inversion Algorithm Based on RREF

[seanwool]

My goodness! This course is bombshell after bombshell.

[PyMoondra]

So many insights from your series. Thank you so much.

[vikasreddykatta]

This video and the previous one are the best so far!

[henryalferink]

I found the second step a bit hard to understand--where AB becomes B

[asterisqueetperil]

Asking a series of simple questions instead of trying to answer a difficult one, I have seen this before... I don't remember... Oh yes, it is science !

[thentust]

If the matrix A(3*3) is linear dependent, the 3rd column is the first two columns' combination, and the first two are independent to each other. what is [A AB]'s reduce echelo form looks like?
I think it is [ 1 0 1 x1+x3 ], if B=[x1] .
0 1 1 x2+x3 x2
0 0 0 0 x3