Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections Next Video: ua-cam.com/video/vXqlIOX2itM/v-deo.html
@@fergi5068 I'd say, it might be better that you just keep the secret than telling others about it. I mean, he doesn't intend to reveal his true identity, so it must mean something.
I wonder what people do when they reach upper division courses, when there aren't as many resources available. Do they just get filtered out and switch majors?
This helped me prepare for my end of year exam and I aced it, thanks a lot man. Really, don't think that I could've gotten through my second semester exam without your videos. Which makes me wonder how you got to understand them all considering how complex they are!!!! Anyway thanks!!!!
MR. Organic Chemistry Tutor, thank you for an excellent video/lecture on Finding the Determinant of a 4x4 Matrix. This is a classic problem in old fashion Linear Algebra/Systems.
bruh im taking pre calc online and I literally came across this today, but it’s a 3x3 matrix and the HW is due today. I did not expect you to make a tutorial on how to do this. Freaking clutch man!!
@@abdullahsehgal1614 hey you have a point but proper notation is very important. A matrix and determinant are not the same thing, so it would be incorrect to use square brackets when computing a determinant
I don't comment generally but I read in Class 7. In my school, Cramer's rule should be in class 9 or something like that. Even I understood your lectures that is 2×2, 3×3 and now this 4×4 one. If you think I am lying, then I swear to God.Amazing! Teach like this!!!
My professor speaks perfect english but I understood nothing when he showed this in the lecture. 40 seconds in with your video and I already get it. Thank you soooooo much.
Recommend a bit of gaussian elimination - if you add third row to first and third row multiplied by 2 to second and fourth, you will get a nice (0, 0, -1, 0) column and you only have to calculate a determinant of one 3x3 matrix.
Yeah, it does, adding a multiple of a row doesn't change anything. The other row operations do, but it is still just a scaling by constant you can keep track of.
The instant relief you get when you search for something math related and immediately recognize the black board with yellow and white writings that belong to the organic chemistry tutor.
I just want to thank u bro you are a true hero wherever you are I just want to tell u that u made a person happy 2day bcz of ur way of making things easier
My class had a lot of problems with this so my teacher said, "I guess it will be in the exams". We all laughed it off, but oh boy, we should have listened
or you can simply transform it into an upper triangular matrix by performing row-elementary operation and then by multiplying its diagonal elements we get the determinant.
I can't believe I did it.your Awesome 👍. Where were you last semester! I'm taking the class again however it all good . I have a better understanding now. Thank you so much
Explanation on the signs for each operation. Everything should be an addition and the sign comes from multiplying (-1)^(row-index + column-index). So, if you were to use the second row you should have: 2 x ((-1)^(2+1)) x |minor at M2,1| + 5 x ((-1)^(2+2)) x |minor at M2,2| + ... 2 x (-1) x |minor at M2,1| + 5 x (1) x |minor at M2,2| + ... -2 x |minor at M2,1| + 5 x |minor at M2,2| + ... This part gives you the sign for row 2 column 1: ((-1)^(2+1)) = -1. The easiest way to think about it, is to add the indices if its odd is - if its even is +. Row 2 Column 1 => 2 + 1 = 3 => odd - Row 2 Column 2 => 2 + 2 = 4 => even + Row 2 Column 3 => 2 + 3 = 5 => odd - Row 2 Column 4 => 2 + 4 = 6 => even + ...
That's the full way! You can use row reduction to add more zeros... But you have to keep track of the operations and sdd a coefficient for each type. Or, you know, use a function.
Final Exams and Video Playlists: www.video-tutor.net/
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it's a relief when i search for something and this dude's video appears
Exactly😂
same, I understand him more than anyone else,
You've made this so simple, I can't believe how simple it is. Thank you so much.
What's with the thumbs down people? He is the best tutor ever, seriously.
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This is the first time of learning 4x4 matrices. Thanks so much. You are the best tutor online.
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Can you write it?
@@bma2224 Yes, easily.
true2
True
Everything
Face reveal please, it is important to know the person who has taught me from junior school to high school to university
He's never going to do that knowing how judgmental and creepy the internet can be. Some people even stalk and find people.
@@fergi5068 I'd say, it might be better that you just keep the secret than telling others about it. I mean, he doesn't intend to reveal his true identity, so it must mean something.
If he did then they would get rid of him
We're student of the teacher who we don't know his face:)
@@jalalgk2415 Kakashi sensai....
Had a 3x3 on my maths exam last week. Thank you for all your information, got a High Distinction, top marks in my maths engineering class :D
Congratulations, my linear algebra exam is in a weeek😭😭
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I wonder what people do when they reach upper division courses, when there aren't as many resources available. Do they just get filtered out and switch majors?
This helped me prepare for my end of year exam and I aced it, thanks a lot man. Really, don't think that I could've gotten through my second semester exam without your videos. Which makes me wonder how you got to understand them all considering how complex they are!!!! Anyway thanks!!!!
The heck it's not complex at allll, it's just manual labour 😂😂😂, brroooooo so fumkin funny 🤣🤣
MR. Organic Chemistry Tutor, thank you for an excellent video/lecture on Finding the Determinant of a 4x4 Matrix. This is a classic problem in old fashion Linear Algebra/Systems.
I hate
When someone dislike his videos
Man is genius and deserves every bit
You are the best online teacher. You really helped many students Excel in their exams. Thanks
bruh im taking pre calc online and I literally came across this today, but it’s a 3x3 matrix and the HW is due today.
I did not expect you to make a tutorial on how to do this. Freaking clutch man!!
I'm also in pre-calc. The way the book teaches it makes it much more complicated. This is so much easier
EXCELLENT explanations!! And thanks A LOT for telling us about the website
Thank you, you are supper teacher from the day I heard your first math class on line never look others you made so simple, thank you so much.
Wow ,now I can find the determinant of a 4*4, thanks sir.
Me an computer science student watching this after I forgot everything taught to us in 10th grade
+1🤦🏻♀️
It may be good practice to draw straight lines for determinant instead of square brackets. 5*[A] means different thing to 5*|A|
:V
That is correct :)
cut him some slack , like u wouldn't be here if u knew more then him
@@abdullahsehgal1614 hey you have a point but proper notation is very important. A matrix and determinant are not the same thing, so it would be incorrect to use square brackets when computing a determinant
@@abdullahsehgal1614 jeez, calm down dude, it was just a suggestion.
I don't comment generally but I read in Class 7. In my school, Cramer's rule should be in class 9 or something like that. Even I understood your lectures that is 2×2, 3×3 and now this 4×4 one. If you think I am lying, then I swear to God.Amazing! Teach like this!!!
how i wish i met you earlier my first degree program, you really makes maths lovely
The bestest teacher ever!
My professor speaks perfect english but I understood nothing when he showed this in the lecture. 40 seconds in with your video and I already get it. Thank you soooooo much.
You explain better than my teacher🥂✨
Hello
Recommend a bit of gaussian elimination - if you add third row to first and third row multiplied by 2 to second and fourth, you will get a nice (0, 0, -1, 0) column and you only have to calculate a determinant of one 3x3 matrix.
It doesn't work that way.
It only works for equations
Yeah, it does, adding a multiple of a row doesn't change anything. The other row operations do, but it is still just a scaling by constant you can keep track of.
This is one of the best educational channels in UA-cam! Thank you for your efforts!
you made my life so easy brother thank you
Thanks a lot I have an end semester exam tomorrow and your video has remind me what I forgot. 🙏🏽
So glad you exist! Love learning from you
The instant relief you get when you search for something math related and immediately recognize the black board with yellow and white writings that belong to the organic chemistry tutor.
its really helpful to me thanks a lot dear your way of teaching is superb
Thank god, I found this channel, you are an angel. Thank you so much
I just want to thank u bro you are a true hero wherever you are I just want to tell u that u made a person happy 2day bcz of ur way of making things easier
You are the best teacher ever.😊
My class had a lot of problems with this so my teacher said, "I guess it will be in the exams". We all laughed it off, but oh boy, we should have listened
😂
ฉันเป็นนักเรียนไทย ครูสอนดีมาก เข้าใจง่าย ได้ภาษาด้วยนิดหน่อยค่ะ กระชับรวดเร็ว
Thanks, man. That was more helpful than 5 hours of suffering in university. You so cool)
this content proved very beneficial to me Thank you Mr. Organic Tutorial ..
At last I'm cleared of confusion💓📖
Solving by this method is heaven.tq man🙌
from ochem to biophysics this guy is always helping me out thanks
One recommendation......you can use Sarrus rule for determinants and solve it quickly within 2 minutes
Will you elaborate..... Put a video make your own channel that would be nice! #from India🇮🇳
Nice video as usual, please keep uploading more videos, you are helping us a lot. Thank you.
Thank by watching your video... I got some help in studies!
This channel and Khan Academy got me through high school and now University
The best teacher. Thank you.
This is a GREAT way to find determinants
Thank u so much.I am never disappointed on this channel
Best of the best
Sent by Azizbek
He is from Uzbekistan
or you can simply transform it into an upper triangular matrix by performing row-elementary operation and then by multiplying its diagonal elements we get the determinant.
that's gaussian which is essentially better than cramer's but he's using cramer's rule
@@physician8683 hes not using cramer, or else he would replace the values with the result to get the values
with what do you multiply the diagonal ?
@@physician8683 No he is not, that isn't crammer's rule
THANK YOU SO MUCH, MY HERO. COMMENTS AHEAD OF 2 DAYS OF FINAL 💜
THANK YOU. Exam in less than 2 hours. Lets goo
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Thank u good sir u helped me prepare for tomorrow's quiz... here's hoping!
a comment for the algorithm out of thankfulness
very good, straight to the point video
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Really explained very well🙂
Your videos are gold!
IT'S VERY CLEAR. I THINK I LOVE YOU
I can't believe I did it.your Awesome 👍. Where were you last semester! I'm taking the class again however it all good . I have a better understanding now. Thank you so much
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Excellency at its best!!
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+Organic Chemistry
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Explanation on the signs for each operation.
Everything should be an addition and the sign comes from multiplying (-1)^(row-index + column-index). So, if you were to use the second row you should have:
2 x ((-1)^(2+1)) x |minor at M2,1| + 5 x ((-1)^(2+2)) x |minor at M2,2| + ...
2 x (-1) x |minor at M2,1| + 5 x (1) x |minor at M2,2| + ...
-2 x |minor at M2,1| + 5 x |minor at M2,2| + ...
This part gives you the sign for row 2 column 1: ((-1)^(2+1)) = -1.
The easiest way to think about it, is to add the indices if its odd is - if its even is +.
Row 2 Column 1 => 2 + 1 = 3 => odd -
Row 2 Column 2 => 2 + 2 = 4 => even +
Row 2 Column 3 => 2 + 3 = 5 => odd -
Row 2 Column 4 => 2 + 4 = 6 => even +
...
Dude you are a lifesaver, thank you so much.
Very helpful and explained perfectly!
Thanks for letting me know the signs alternate
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Thank you so much for the video JG , it was really helpful , Thank you.
putting one of these in an exam is basically the equivalent of a hate crime...
I had one on a physics 101 exam during my bachelors, expected result.
@@PenandPaperScience f
Lol, held me down in high school. Still holding me down in University 🤝
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i got it all thank you sir
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That's the full way! You can use row reduction to add more zeros... But you have to keep track of the operations and sdd a coefficient for each type.
Or, you know, use a function.
Thank you so much. You have made me understand more better
Love your teaching
Love from india 🇮🇳❤️
thank so much sir ,i understand better now
very nice teaching
GOD BLESS YOU SO MUCH