Best explanation ever! Using mathematical definitions and theorems combined with visual representations really helped me out to not only understand, but also to apply!
The free variables are determined by the columns, not the rows. There is a leading entry in the 2nd column, so v2 is not free. There is no leading entry in the 1st or 3rd column, so v1 and v3 are free.
Best explanation ever! Using mathematical definitions and theorems combined with visual representations really helped me out to not only understand, but also to apply!
Very well explained ! Most insightful explation on the web that I have come across ! Thanks !
Exceptional lecture ❤❤❤
Thank you so so much!!!
at 28:14 why are v1 and v3 free variables and not v2 and v3? Row 2 and 3 are all zeros.
The free variables are determined by the columns, not the rows. There is a leading entry in the 2nd column, so v2 is not free. There is no leading entry in the 1st or 3rd column, so v1 and v3 are free.