Matrices - Free Formula Sheet: bit.ly/3UE9Cmk Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections Next Video: ua-cam.com/video/4VAXv6yRULU/v-deo.html
Matrices had me in literal tears while studying for finals. This helped so, so much, I can't thank you enough. Not one tutor I've been to has bothered to explain how we choose what row to work with or what numbers we choose. You've simplified it so much, thank you!
@@maindepth8830 I might be a bit late but posting this here so other people don't have to go through the pain I did. So it turns out the order in which you choose what row to work with is irrelevant, as long as you calculate everything correctly. Some orders are more convenient than others but in the end all give the same answer. You might have to work a lot with fractions if you don't follow the convenient "path" but in the end it'll all check out.
It took me 5 days to fully understand Gauss-Jordan Elimination. I have now, after many attempts, come to a conclusion that you ALWAYS have to do this when you start (the example is a 3x4 but the rule is for all): - - | 1 x x | x | | x x x | x | | x x x | x | - - - - | 1 x x | x | | 0 x x | x | | x x x | x | - - - - | 1 x x | x | | 0 x x | x | | 0 x x | x | - - After you have done these three steps you need to check if there’s a “1” in the middle of row two or three. If there’s no “1” in the middle of row two but there’s a “1” in row three, you need to swap row two with row three. If there’s no “1” in either, you have to find the pivot in row two and turn it into a “1”. These steps are the fundamental of Gauss-Jordan Elimination. The other steps will become clear after these steps.
@@Frankcohle you don't really need calculus for linear algebra. many schools require calc 2 as a pre-requisite but I think it's totally unnecessary, you could do this right after a solid College Algebra class
Words larger than 'Thank you' for being the first person - ever - to show all the steps, and most importantly right at the very end, in what it means for x,y,z values. My Math understanding of rmatrices is so much clearer thanks to you. Totally appreciate you.
@The Organic Chemistry Tutor has been very instrumental in my efforts to pass Mathematical Analysis & Linear Algebra here at college. This tutorial lessons are much more effective than what I get from school. Thanks a lot Sir for your work is wonderful. I´ll refer many others to this Channel.
Solving by both ADDing and SUBTRACTing rows instead of just always ADDing them may make some people prone to more errors when solving... You may have said it in the video, since I skimmed through, but for anyone who doesn't see it, when you ADD rows like ( R1 + R2 ) ONLY row R2 will CHANGE. And when you SUBTRACT rows like ( R1 - R2 ) ONLY R1 will CHANGE. My professor explained it to us as if there's no such thing as subtraction.. Since you can say... R1 + (-R2) = R1 - R2 I Always ADD rows and Never subtract so I can try and make it easier on myself to remember that only the right side of the addition problem will be the row that will be changed. For me, this is easier when I'm in a rush not to make mistakes. Because doing it your way just adds another step to think about and is something you need to consciously be aware of so you don't switch the wrong row. As an example at 5:40min in the video instead of your way.... 3(R1) - R2 {Where only Row 1 changes} I would do... -3(R1)+R2 {Where only Row 2 changes} I always ADD the rows and never subtract and just know the right side of the addition problem is the row that will be changed. This is just something that helped me make fewer mistakes and possibly save a few seconds time. Its good to get as many perspectives as you can though to find out which way is better for each individual.
Hunter Keating This is exactly what I thought, I really figured from the beginning that there was something off because what I learned at college contradicts with his way which is directly subtracting one row from another but the correct operation says: you can add a multiple of one row to another row.
you can simply assign the value of the operation to a row for example R1-R2 ---> R1 and this would be less likely to cause you errors while still substracting
I really do not know who this guy is who is explaining BUT HE is a real Genius, his explanation is the BEST, very clear & to the point & I understand everything, THANK YOU SO MUCH
@@PavanKalyan-bo6qp that’s a dumb idea. You take college to get a degree and the certification that says you know how. Not to learn it unless you really want to
You're a hero I hope you know that! Can't say enough how much I appreciate your videos! Especially as a bio student that struggles constantly with math.
Next time try learning a new thing with his teaching first and then listen your professor's explanation. You might find that suddenly your professor is a great teacher.
@@avrilynravenee5143 yeah likely you'll just feel like a smarty-pants as all the other students struggle with learning it for the first time. then you wonder why you showed up to lecture in the first place
you sir carried me in organic chemisty 1 and 2 when i was doing my bachelor degree back then .. now im doing my master degree and u sir are doing the same thing but with math .. thank you so much!!
My exam starts in 2 hours. Thank you for this useful tutorial. This is so easy even kids can learn. Idk why some people hate this because they think that he's trying to confuse them. But nope, his explanation was crystal clear.
Outstanding Explanations. By far this channel is the Rolls Royce of Mathematics - The tutor is the Undefeated Champion proving a Supreme Clarity while he is standing out by Depth & Elegance 🙏
Im not following whats going on at 1:53. Your notation in the top right says you are going to be taking away R2 from R1 ( R1-R2 ) surely that should be the other way around ( R2 - R1 ). This also makes it so that its -1 - 1 = -2 which would have further implications on the rest of the calculation.
dudeeee i have a test tomorrow and i got stuck in this method 😭 your simple explanation with a simple example helped me grasp the concept very easily and i was actually able to solve a question from my school which i was stuck on, with ease!!! tysmm man you're such a saviour 😭🙏
I've always said, and I will maintain, that the only relevant setting of knowledge after 2005 is the laboratory (2005 is the creation of UA-cam and Vimeo and the start of a full online and social media age). Most classrooms are not worth it anymore because most teachers are not teachers, they are simply professionals with no passion at all to impart their knowledge. The Organic Chemistry Tutor is a teacher...he knows the stuff and can impart it clearly. We need more of him in schools all around the world, even in developed countries (I've been to 6 of them and very many of their teachers suck even though they have all the facilities and equipment). Keep up your good work and the earlier UNESCO realizes this the better.
thank you man. I always watch your thermodynamics video while i'm taking chemical engineering major. Now that i quit and change my major to statistic, i still watch your videos to help me study🤣
To continue being quiet and not comment on your channel will be equal to committing a sin. You've been a great help to my little girl in Maths and since I can't pay you,I've decided to watch at least one advert anytime I open a tutorial of yours,not for my interest in their products but to support the channel😀 I just hope you get yours from the advertisers.😍
Thank you man! I watched your video the day before the exam and it saved my life. During the exam was the first time I was row reducing by hand and I got it! Manh thanks!
In the first part , you've calculated R1-R2 ( 01:50 ) and R1 has stayed untouched only R2 has changed , but later you've done 3R1 -R2 and the R1 has changed not R2. So when you're transforming the elements under the first diagonal , R1-R2 means that R2 is changing , and when you're above the diagonal , R1 is changing?
Bro I can't thank you enough! I'm literally in shock I just get it and I can't believe ittt.. my prof discuss this and I can't even understand anything he said you deserve my tuition broo!!!
8 dislikes !!!!!!!!!!!!!! lmao you gotta be kidding me. wallahi (by God), this is one of the finest teacher I've came across ,thank you so much @THE ORGANIC CHEMISTRY TUTOR from bottom of my heart, May Allah swt bless you.
diamond beatsx why don’t you stop insulting people and get yourself educated about people’s beliefs and cultures. Not all people are animals that don’t have any meaning in life other than work, sleep, eat like you, no there are people who believe in God and pray to everyday. They know why they were created.
@@MonumentalDong thanking God for receiving help from someone else isn't blasphemy. It's recognizing blessings, which we should do as it's not only respectful but kind.
MR. Organic Chemistry Tutor, thank you for a fantastic introduction to the Gauss-Jordan Elimination Method and Reduced Row Echelon Form in Precalculus/Linear Algebra.
i must admit you having being saving me for a long time but this is just exceptional ma prof made it so complex i check most videos in youtude is da same you are ma super hero
You are a life savior because i was given some assignment on this ,of which i had no clue about this method.So i just came to your channel and BOOM i found it. Thank you.
No because when you try to get your zeros you mess up the main diagonal 1's the nice thing about having zeros first is that it's hard to accidentally get rid of because anything multipled by zero stays zeros
Thats the point withgaus-jordan questions.You DONT know what to do.You have to think of it yourself whatever solves the question.Its like solving a rubicks cube.You have to move the parts in a way which works for you and solve the cube.
The video shows how to use Gauss-Jordan elimination to solve a system of equations with three variables by converting it into an augmented matrix and performing row operations to obtain the reduced row echelon form. [00:00] Gauss Jordan elimination is used to solve a system of equations with three variables - The problem is converted to an augmented matrix - Elementary row operations are performed to obtain reduced row echelon form - The values of x, y, and z are obtained from the resulting matrix [02:39] Performing row operations to convert matrix to reduced row echelon form - Multiplying row 1 by -2 to get a leading 1 in the first column - Adding 2 times row 3 to row 2 to get a 0 in the second column - Adding -3 times row 3 to row 1 to get a 0 in the third column - Adding -4 times row 3 to row 2 to get a 0 in the fourth column [05:17] The video explains how to use row operations to make certain numbers zero in a matrix - To make a number zero, apply an operation on the corresponding row by adding or subtracting it from another row - Rows two and three can be made the same by adding them together - A mistake was made in the video, where a number was copied incorrectly, leading to an incorrect calculation [07:56] The video explains how to convert a matrix into reduced row echelon form - To convert a matrix into reduced row echelon form, apply operations to rows - To make the first number in each row equal to one, multiply each row by a fraction - The resulting values can be used to solve for the variables in the system of equations - In the example given, the solution is x=6, y=-1, z=-2
Thank you so much, very clear explanation of what my textbook made MEGA confusing. Pretty straightforward algebra when it comes down to it. Ill send you my degree in the mail
Him: "So we are on route to get the correct answer" Also him 0 seconds later: "Actually I made a mistake" lol I love ur teaching btw very clear explanation!
Babes, I just discovered something. If you do the operations for the top right zeros working from the left, your proofs will be sure. THANKS A LOT FOR ALL YOUR HELP.
I’m confused with the order of operations, I thought it went from a1,1 being the first step diagonally down and then a2,2 being the 4th step. Ile keep watching but I’m hoping Ile understand this.
You're expert really I watch all of your calculations also You're unlimited in mathematics sir . I have understood this well but it's necessary to find out it's formula
Matrices - Free Formula Sheet: bit.ly/3UE9Cmk
Final Exams and Video Playlists: www.video-tutor.net/
Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections
Next Video: ua-cam.com/video/4VAXv6yRULU/v-deo.html
Thanks for the help my g
you didn't really described the reduced echlone form
099999990999oo9oo0o99999m,,999999|00|
This guy is a literal blessing; the only sad thing is that people come to him only when it's too late - the night before the final.
well...the test is after 2 hours..
It’s 2 hours before the paper 😢
Me rn
@@suheyl-hx6sh lmao same
literally me rn 2 hours before my exam rmfaooo
Matrices had me in literal tears while studying for finals. This helped so, so much, I can't thank you enough. Not one tutor I've been to has bothered to explain how we choose what row to work with or what numbers we choose. You've simplified it so much, thank you!
i am still confused as to how make this unholy disgusting garbage of a method to work
@@maindepth8830 Yup.
I’m literally in tears now typing this :(
@@mm-ol6ed appropriate profile picture
@@maindepth8830 I might be a bit late but posting this here so other people don't have to go through the pain I did.
So it turns out the order in which you choose what row to work with is irrelevant, as long as you calculate everything correctly. Some orders are more convenient than others but in the end all give the same answer. You might have to work a lot with fractions if you don't follow the convenient "path" but in the end it'll all check out.
It took me 5 days to fully understand Gauss-Jordan Elimination.
I have now, after many attempts, come to a conclusion that you ALWAYS have to do this when you start (the example is a 3x4 but the rule is for all):
- -
| 1 x x | x |
| x x x | x |
| x x x | x |
- -
- -
| 1 x x | x |
| 0 x x | x |
| x x x | x |
- -
- -
| 1 x x | x |
| 0 x x | x |
| 0 x x | x |
- -
After you have done these three steps you need to check if there’s a “1” in the middle of row two or three.
If there’s no “1” in the middle of row two but there’s a “1” in row three, you need to swap row two with row three.
If there’s no “1” in either, you have to find the pivot in row two and turn it into a “1”. These steps are the fundamental of Gauss-Jordan Elimination. The other steps will become clear after these steps.
Bro you saved me thank you so much
Nice 😮
Legend comment. Never know what direction to take the questions in.
What do you mean by pivot?
@@jd2981I think the number in the row/column that u want to change
My professors always explain things so fast I get hopelessly lost. You take your time to explain all the operations and I appreciate that
bro get your brain checked
bruh got me through Calc 2, now he's helping me in Linear Algebra, hopefully man dem have vids for Calc 3.
yup
his calc 3 vids helped me so much
Guy has like every stem subject covered for you
You got linear algebra after calc 2? No wonder i’m finding this so hard, i haven’t even done calc 1 yet
@@Frankcohle you don't really need calculus for linear algebra. many schools require calc 2 as a pre-requisite but I think it's totally unnecessary, you could do this right after a solid College Algebra class
Words larger than 'Thank you' for being the first person - ever - to show all the steps, and most importantly right at the very end, in what it means for x,y,z values. My Math understanding of rmatrices is so much clearer thanks to you. Totally appreciate you.
@The Organic Chemistry Tutor
has been very instrumental in my efforts to pass Mathematical Analysis & Linear Algebra here at college. This tutorial lessons are much more effective than what I get from school. Thanks a lot Sir for your work is wonderful. I´ll refer many others to this Channel.
bro this is not music class to put instruments in you. go and study.
@@PavanKalyan-bo6qp You clearly don't understand simple english, i'm sorry for you
@@charless__10 who asked?
@@PavanKalyan-bo6qp I asked
@@PavanKalyan-bo6qpThat's the point no one cares about your opinion and no one asked 😊
Solving by both ADDing and SUBTRACTing rows instead of just always ADDing them may make some people prone to more errors when solving...
You may have said it in the video, since I skimmed through, but for anyone who doesn't see it,
when you ADD rows like
( R1 + R2 ) ONLY row R2 will CHANGE.
And when you SUBTRACT rows like
( R1 - R2 ) ONLY R1 will CHANGE.
My professor explained it to us as if there's no such thing as subtraction..
Since you can say...
R1 + (-R2) = R1 - R2
I Always ADD rows and Never subtract so I can try and make it easier on myself to remember that only the right side of the addition problem will be the row that will be changed.
For me, this is easier when I'm in a rush not to make mistakes. Because doing it your way just adds another step to think about and is something you need to consciously be aware of so you don't switch the wrong row.
As an example at 5:40min in the video instead of your way....
3(R1) - R2 {Where only Row 1 changes}
I would do...
-3(R1)+R2 {Where only Row 2 changes}
I always ADD the rows and never subtract and just know the right side of the addition problem is the row that will be changed.
This is just something that helped me make fewer mistakes and possibly save a few seconds time. Its good to get as many perspectives as you can though to find out which way is better for each individual.
Hunter Keating This is exactly what I thought, I really figured from the beginning that there was something off because what I learned at college contradicts with his way which is directly subtracting one row from another but the correct operation says: you can add a multiple of one row to another row.
I do this too!!! It’s so much easier for me
Thanks a lot 🙏🏻
you can simply assign the value of the operation to a row for example R1-R2 ---> R1 and this would be less likely to cause you errors while still substracting
Literally just commented this, thanks alot!!
I really do not know who this guy is who is explaining BUT HE is a real Genius, his explanation is the BEST, very clear & to the point & I understand everything, THANK YOU SO MUCH
It’s the way the lecturers here in my school make this easy concept so complicated. Thanks man , you deserve my respect.
I should stop going to class and watch these videos.
Tyrell Harris I said the same thing yesterday!
i started doing that 2 years ago and I've maintained solid grades doing so, he's very good at explaining all math concepts.
Me too👌
No! Go to classes and watch videos. Do both, be more successful.
Yeah Uni is kinda a scam
Just want to let you know you're amazing! Anytime I run into challenges, I'm always stoked when your videos pop up. Thank you for all of your help!
I'm a university student, and your videos help greatly to my lessons Thank you🌼
Then quit University!
@@PavanKalyan-bo6qp that’s a dumb idea. You take college to get a degree and the certification that says you know how. Not to learn it unless you really want to
You're a hero I hope you know that! Can't say enough how much I appreciate your videos! Especially as a bio student that struggles constantly with math.
I cannot imagine how much u struggle with ur life wen u cant even do math
@@VigneshVicky-zo5bk r/iamverysmart
Go watch marvel.
My professor makes this seem so complicated but when you didn’t it was so easy.
he is ma sumperstar
Next time try learning a new thing with his teaching first and then listen your professor's explanation. You might find that suddenly your professor is a great teacher.
@@meanmole3212 idk man, if you cant introduce a topic to your students in a way that they understand then youre still a bad teacher
@@avrilynravenee5143 yeah likely you'll just feel like a smarty-pants as all the other students struggle with learning it for the first time. then you wonder why you showed up to lecture in the first place
simp
It seems so easy until you try solving one question 😭😭😭
😂😂😂😂😂😂
Soo true😂😂😂
@@abdomenebadellah
Does the order of finding the zeros matter? Do all zeros in this order before 1 right
42luke yea It matters like u go fro row 1 to row 2 then row 3 for the bottom left. Then for the top right u go opp
For auto solution of gauss jorden method you can watch this tutorial to.
Thnx me later
ua-cam.com/video/vzn85dJUf3M/v-deo.html
you sir carried me in organic chemisty 1 and 2 when i was doing my bachelor degree back then .. now im doing my master degree and u sir are doing the same thing but with math .. thank you so much!!
i seriously cannot use words to express how thankful i am to you.Thank you so much thank you.
I love your presentation. Normal speed, clear step and simple to understand
This guy got me through highschool. Absolute legend
Thank you so much!! In 10 minutes you manage to explain something that my professor is trying to explain to us in 3 hours
My teacher just linked this video for reference, a true G
Good luck!
My exam starts in 2 hours. Thank you for this useful tutorial. This is so easy even kids can learn. Idk why some people hate this because they think that he's trying to confuse them. But nope, his explanation was crystal clear.
This man deserves one of the best award in the WORLD! as respect
Preparing for my math placement exam would be horrible with you!! Thank you for all you do. It's incredibly admirable. -Arin
Without* you XD
Outstanding Explanations. By far this channel is the Rolls Royce of Mathematics - The tutor is the Undefeated Champion proving a Supreme Clarity while he is standing out by Depth & Elegance 🙏
Who asked?
@@PavanKalyan-bo6qp i did
I came from an online Harvard class on linear algebra that was making zero sense to me, now I get it, thank you so much.
Im not following whats going on at 1:53. Your notation in the top right says you are going to be taking away R2 from R1 ( R1-R2 ) surely that should be the other way around ( R2 - R1 ). This also makes it so that its -1 - 1 = -2 which would have further implications on the rest of the calculation.
He is taking (R1-R2) and saving the result into the second row
you’re the goat of youtube my man
I am a student of National University of Bangladesh .Really you convince quality is totally awesome.....tnx a lot my teacher .
dudeeee i have a test tomorrow and i got stuck in this method 😭
your simple explanation with a simple example helped me grasp the concept very easily and i was actually able to solve a question from my school which i was stuck on, with ease!!!
tysmm man you're such a saviour 😭🙏
I have a test today 😅
I remember when this dude was at 1M subs just at the start of COVID now look at him. Keep up the good work 👍
I wish I came across this video before I had a mental breakdown trying to solve it myself
😅😅😅
same
me coming here before i even attempt it again and end up crying
I've always said, and I will maintain, that the only relevant setting of knowledge after 2005 is the laboratory (2005 is the creation of UA-cam and Vimeo and the start of a full online and social media age). Most classrooms are not worth it anymore because most teachers are not teachers, they are simply professionals with no passion at all to impart their knowledge. The Organic Chemistry Tutor is a teacher...he knows the stuff and can impart it clearly. We need more of him in schools all around the world, even in developed countries (I've been to 6 of them and very many of their teachers suck even though they have all the facilities and equipment). Keep up your good work and the earlier UNESCO realizes this the better.
6:00 isn't "R3" supposed to stay the same? It seems like you changed the "-6" to "6"
Yeah i think that it is a mistake
few minutes laters he corrected it :)
@@pow_ext what about the bottom left matrix at 10:50. Shouldn't that be -6 also?
@@1213chio he also corrected it later on in the video :-)
thank you man. I always watch your thermodynamics video while i'm taking chemical engineering major. Now that i quit and change my major to statistic, i still watch your videos to help me study🤣
You explain it wayyyy better than my lecture, God Bless👏🏾👏🏾
Thanks
This channel helps me in my campus Mathematics courses. At this rate ,I only go to class only to go back home and learn on this channel
i dont even go to campus man, i just enter a zoom room
God Bless you man! Thank you so much. this was so helpful... all the way from Sunny South Africa
Көп рақмет! From Kazakhstan! much love!
To continue being quiet and not comment on your channel will be equal to committing a sin. You've been a great help to my little girl in Maths and since I can't pay you,I've decided to watch at least one advert anytime I open a tutorial of yours,not for my interest in their products but to support the channel😀 I just hope you get yours from the advertisers.😍
istg this guy saved my life. RREF was a pain and linear algebra is basically RREF
Omg Thankyou so much for this I want to cry because I finally got it 😭🥺❤️🙏🏼
First you help me in cal 3 and now linear algebra thank u so much . Your videos surely deserve like from me
I never believe I could understand Gauss Jordan before a day to my exam, thanks a lot I really appreciate your videos
You are the best man! your teaching is amazing! you are an ingenious!
how would you know that a certain operation is what you are going to use in every rows?
It's just basic Arthimetic maths, to make numbers zero
fucking around and finding
Thank you man! I watched your video the day before the exam and it saved my life. During the exam was the first time I was row reducing by hand and I got it! Manh thanks!
In the first part , you've calculated R1-R2 ( 01:50 ) and R1 has stayed untouched only R2 has changed , but later you've done 3R1 -R2 and the R1 has changed not R2. So when you're transforming the elements under the first diagonal , R1-R2 means that R2 is changing , and when you're above the diagonal , R1 is changing?
@Divyansh Maurya thank you for responding I was confused on that part as well
@@Termite1157what dis he say? I cant see his comment
I genuinely love you
Very well explained! Thank you very much. All the professors should watch and learn how to explain the material properly. Thank you very much.
This man has saved so many professors' jobs.
Everything in mathematics is possible with the this guy. Thank You sir
my new online teacher. My percale teacher does zoom or anything. She just hashes out notes and tests.
This monk really helped me for my bachelor's degree
Bro I can't thank you enough! I'm literally in shock I just get it and I can't believe ittt.. my prof discuss this and I can't even understand anything he said you deserve my tuition broo!!!
8 dislikes !!!!!!!!!!!!!! lmao you gotta be kidding me. wallahi (by God), this is one of the finest teacher I've came across ,thank you so much @THE ORGANIC CHEMISTRY TUTOR from bottom of my heart, May Allah swt bless you.
why would u use Gods name for no reason like that u blasphemous rat
diamond beatsx why don’t you stop insulting people and get yourself educated about people’s beliefs and cultures. Not all people are animals that don’t have any meaning in life other than work, sleep, eat like you, no there are people who believe in God and pray to everyday. They know why they were created.
If you truly believe in God you wouldn't be using his name to emphasize how helpful s math problem is lmao that's just an insult to God
@@MonumentalDong thanking God for receiving help from someone else isn't blasphemy. It's recognizing blessings, which we should do as it's not only respectful but kind.
@@MonumentalDong L
MR. Organic Chemistry Tutor, thank you for a fantastic introduction to the Gauss-Jordan Elimination Method and Reduced Row Echelon Form in Precalculus/Linear Algebra.
This guy is the best i have been struggling with this topic
This guy makes tough math look easy. Thank you!
When you pay for a professor to teach you these kinds of problems but ends up having to watch youtube videos to pass the class. I hate college
How you holding up now?
@@asadfarrajhey, I actually graduated college so I’m good, thank you
this guy is just insane!
i must admit you having being saving me for a long time but this is just exceptional ma prof made it so complex i check most videos in youtude is da same you are ma super hero
You are a life savior because i was given some assignment on this ,of which i had no clue about this method.So i just came to your channel and BOOM i found it.
Thank you.
Can't be more thankful if that guy came and said 1+1=3 I'll believe him💙☁
Sir, I do not know how to thank you! But you should know that you saved me and helped me a lot!! God bless your beautiful soul!
Videos from yt carried me from high school to college thank u ur one of them.
knowing which row to add so the other zeros stay the same is sill confusing, anyway this guy is saving my engineering career
I think its better to convert the middle diagonal row to 1s first so its easier to acquire a value of 0 for the upper triangle portion of the matrix.
No because when you try to get your zeros you mess up the main diagonal 1's the nice thing about having zeros first is that it's hard to accidentally get rid of because anything multipled by zero stays zeros
Finally find the right tutorial now i understand this lesson
THE HERO. YOU SAVE MY LIFE
You are the best professors sir
How did you know that at 2:36 we would have to use -2? Can someone explain this to me?
Thats the point withgaus-jordan questions.You DONT know what to do.You have to think of it yourself whatever solves the question.Its like solving a rubicks cube.You have to move the parts in a way which works for you and solve the cube.
Thank you, without you I couldn't pass the "Sesiune" :) You're the real MVP!!!!
La ce facultate esti?
I'm University student and this my assignment in university.Thank you so much for how helping me😊 🙏 .
This is so clear and rational, thank you so much!
I dont even use my book anymore 😂 I go to the questions and find his video for it. Saves sooooo much time and writing. 🎉❤
To do the reduced row echeolon form, is there a reason you went to make -1 at (1,3) 0 first? And then -3 at (2,3) and last 1 (1,2)?
Im in advanced math and im learning this and it is so complicated, this channel is the one i go to for this stuff
The video shows how to use Gauss-Jordan elimination to solve a system of equations with three variables by converting it into an augmented matrix and performing row operations to obtain the reduced row echelon form.
[00:00] Gauss Jordan elimination is used to solve a system of equations with three variables
- The problem is converted to an augmented matrix
- Elementary row operations are performed to obtain reduced row echelon form
- The values of x, y, and z are obtained from the resulting matrix
[02:39] Performing row operations to convert matrix to reduced row echelon form
- Multiplying row 1 by -2 to get a leading 1 in the first column
- Adding 2 times row 3 to row 2 to get a 0 in the second column
- Adding -3 times row 3 to row 1 to get a 0 in the third column
- Adding -4 times row 3 to row 2 to get a 0 in the fourth column
[05:17] The video explains how to use row operations to make certain numbers zero in a matrix
- To make a number zero, apply an operation on the corresponding row by adding or subtracting it from another row
- Rows two and three can be made the same by adding them together
- A mistake was made in the video, where a number was copied incorrectly, leading to an incorrect calculation
[07:56] The video explains how to convert a matrix into reduced row echelon form
- To convert a matrix into reduced row echelon form, apply operations to rows
- To make the first number in each row equal to one, multiply each row by a fraction
- The resulting values can be used to solve for the variables in the system of equations
- In the example given, the solution is x=6, y=-1, z=-2
thank you so much!! you have gave me more confidence.
1:09 diff b/w row echelon & reduced row echelon. we make zeros frm top to bottom starting frm 1st column. actually, no. 8:04 .
4:05 .
you explained it better than my math teacher, ty
You saved us bro, love u
the ending... O M G! (read with Joseph Joestar's voice)
Thanks. I own you a cup of coffee.
Beautifully explained
Thank you so much, very clear explanation of what my textbook made MEGA confusing. Pretty straightforward algebra when it comes down to it. Ill send you my degree in the mail
Nice explanation, it is so clear and easy you are really great teacher👍👍👌
Him: "So we are on route to get the correct answer"
Also him 0 seconds later: "Actually I made a mistake" lol
I love ur teaching btw very clear explanation!
Babes, I just discovered something. If you do the operations for the top right zeros working from the left, your proofs will be sure. THANKS A LOT FOR ALL YOUR HELP.
My teacher tried to explain this to me a hundred times and I couldn't get it. I just got it with you! Keep up mate!!
I think your teacher thought you DUMB!
Good bless u man , u were sent to save us
🙌🙌🤩🥰🤗💖
This video was really helpful,I hope I won't struggle anymore
I’m confused with the order of operations, I thought it went from a1,1 being the first step diagonally down and then a2,2 being the 4th step. Ile keep watching but I’m hoping Ile understand this.
if there is a video from this channel that I didn't hit like button for, it means that I missed it.
Man you're the best!!!!!!!!make it look easier
God bless you
You're expert really I watch all of your calculations also You're unlimited in mathematics sir . I have understood this well but it's necessary to find out it's formula
You are amazing for study help, life saver for real.