Elementary Row Operations Row Echelon Form

[@jondomin566]

I’ve watched like 20 different videos on the same subjects and yours made the most sense to me thank you

[@danielschaben]

Thanks for the comment!

[@raves_r3177]

3R1 + 2R3 in 8:03 is that even allowed? as far as i know you could only add or subtract a multiple of a row to another row, not a multiple of a row to a multiple of another row.

[@danielschaben]

yes. allowed.

[@danielschaben]

It is like elimination method for simultaneous equations. Same principle.

[@花冬-h4l]

What's the difference between doing R1=3R1, R3=2R3 and then R1+R2 first And doing directly 3R1 + 2R3?

[@PLP0321]

Hi, thanks for your video. I tried to use my TI-84 calculator to check the final answer of your second example, and it does not match the final values when using rref.

[@danielschaben]

The last problem is just reduced echelon form not reduced row echelon form. I didn't take it out as far as your calculator will. I think TI 84 will do it with ref()... but I don't have one here to check it out. Had I kept going with zeros above the ones... I think I would have ended up with your answer. just trying to keep video shorter.

[@chideraogoko6417]

Thanks sir,
I have watched many videos but u make me understand this.
God bless u🙏

[@danielschaben]

You're sure welcome. If you need any other vids on math let me know. I will do my best.

[@Maggio97]

I learned to multiply the values not divide so it made a bit of a confusion for me, are we allowed to divide instead of multiply the rows ?

[@danielschaben]

Yes. I just try and use multiplication because it is easier for some to think about.

[@razalasreficul6902]

Thank you! Brilliant explanation!

[@danielschaben]

Glad it was helpful!

[@fayezhabhatti5903]

I am afraid when u sneez😅..bt i like ur video...thank u..🙂

[@花冬-h4l]

My teacher didn't gave me marks because he says we cannot add or substract a multiple of a row to another multiple of a row. But take for example if we instead of doing 3R1 + 2R3, first do R1= 3R1 and R3=2R3 and then add them then isn't it the same thing with extra steps? I'm really confused please tell me this is correct and I should go tell him.

[@danielschaben]

It seems like what you are saying is right. I wouldn't know for sure until I saw you actually complete a problem.

[@tcyoshida8818]

Thank you kind sir. I understand.

[@augustineokekeoma1750]

Your second example doesn't seem to agree with my answer. I started off by flipping first and second rows.

[@anisrozi4903]

may i know ur last answer, bcz that my first step too

[@ВисалИнг]

Great video

[@malikrahim6950]

thanks man

[@allimiller3272]

Bless you

[@nasiruabubakargagi3424]

thanks sir

[@marwansabri2281]

allah

[@nasiruabubakargagi3424]

thanks sir

[@danielschaben]

Most welcome