❖ Linear Independence and Linear Dependence, Ex 1 ❖

แชร์
ฝัง
  • เผยแพร่เมื่อ 3 ต.ค. 2024
  • 📚 Linear Independence and Dependence Explained - Step-by-Step Example 📚
    In this video, I explore the concept of linear independence and dependence in vector spaces, demonstrating what it means for a set of vectors to be linearly independent or dependent. We'll work through a detailed example showing that a specific set of vectors is linearly dependent by row reducing a matrix composed of these vectors.
    🚀 What’s covered:
    Understanding the definitions of linear independence and linear dependence.
    How to determine if a set of vectors is linearly dependent using row reduction.
    Step-by-step walkthrough of an example to solidify your understanding.
    Tips for recognizing linearly dependent sets in vector spaces.
    Whether you're studying linear algebra or preparing for exams, this video will help you grasp these fundamental concepts essential for advanced mathematics, physics, and engineering courses.
    👍 Don’t forget to like, subscribe, and hit the notification bell for more math tutorials and insights! 🔔✨
    Hashtags:
    #LinearIndependence #LinearDependence #LinearAlgebra #VectorSpaces #MathTutorial #RowReduction #Mathematics #MathHelp #STEM #LearningMath #MatrixAlgebra #EducationalContent

ความคิดเห็น • 340

  • @holdenjones8110
    @holdenjones8110 5 ปีที่แล้ว +327

    How to ace all first year math courses:
    1- Go to class, try to learn the basics
    2- Watch a Khan academy video to "gain some intuition" for subject
    3- Watch every relevant Patrick JMT video to practice solving problems
    4- Repeat throughout semester

    • @bharathsf
      @bharathsf 3 ปีที่แล้ว +5

      Brilliant. I did this a few years ago, I still can solve matrices. Just came back to refresh

    • @yakuzzi35
      @yakuzzi35 2 ปีที่แล้ว +4

      Oh my God, thanks! This is helpful lol, we can add 3blue1brown to the list of sources to gain intuition

    • @Itsjustj82
      @Itsjustj82 2 ปีที่แล้ว +3

      Hi, hope you see this question after so many years...I just started my first semester and during the classes I don't seem to understand literally anything that the Prof teaches, I need to go home an study through TH-cam videos to at least to get a sense of what I'm doing.....is it normal to be like this as a first year student?

    • @Altair4611
      @Altair4611 2 ปีที่แล้ว +2

      @@yakuzzi35 only if you see this as a hobby, for most people watching this isnt, they just want to get it over with

    • @GIWILD
      @GIWILD ปีที่แล้ว +3

      Even if a donkey does all that he will get all A, you think people work overtime? lol man

  • @ryanmcguire5532
    @ryanmcguire5532 8 ปีที่แล้ว +603

    You have been my prof for at least 3 classes in uni

    • @RingxWorld
      @RingxWorld 8 ปีที่แล้ว +151

      this nigga has taught me calculus, lin algebra, stats, i owe this guy my degree

    • @pbps2005
      @pbps2005 8 ปีที่แล้ว +25

      Patrick is white!

    • @ShadowD2C
      @ShadowD2C 8 ปีที่แล้ว +96

      he's a honorary niggga

    • @JattAnmoli
      @JattAnmoli 7 ปีที่แล้ว +11

      M'ShadowCC He is my nigga

    • @chandrapandey822
      @chandrapandey822 6 ปีที่แล้ว +1

      Shawn sorry I did get it
      Is it linear algebra as in lin algebra or lie algebra (lin as in typo)

  • @islespatrick
    @islespatrick 9 ปีที่แล้ว +349

    My real math instructor

    • @MashrufKabir
      @MashrufKabir 9 ปีที่แล้ว +6

      islespatrick Amen.

    • @milkwasabadcholce
      @milkwasabadcholce 8 ปีที่แล้ว +2

      Preach it

    • @daniloorbolato
      @daniloorbolato 7 ปีที่แล้ว +8

      I think that is so because "youtube teachers" are eager to share and teach what they know for no guaranteed return i.e salary. But a lot of "professional teacher" out there are more concerned with their titles and paychecks! Did my first your of Civil heavily backed up by guys like Patrick! If I don't get it there I will surely get it here!

    • @Rainsong777
      @Rainsong777 6 ปีที่แล้ว +2

      Agreeing on that.
      Many distance study institutions could make videos like PatrickJMT & make our lives much easier...
      But, I would come back to Patrick a thousand times over, because he "uncomplicates" Maths & makes it FÜN to learn......
      Even makes one look forward to the "next lesson" 😉

    • @fkncompton7124
      @fkncompton7124 4 ปีที่แล้ว +1

      @@daniloorbolato do you remember which were some of the most helpful channels for civil

  • @williamidakwo2953
    @williamidakwo2953 9 ปีที่แล้ว +183

    To save time if you're asked to determine whether or not the vectors are linearly dependent,
    Take the determinant, if its = 0 it is linearly dependent if not it is linearly independent.

    • @Eurosport.Automotive
      @Eurosport.Automotive 9 ปีที่แล้ว +48

      that works for square matrices only ;)

    • @burlapse4113
      @burlapse4113 9 ปีที่แล้ว +2

      As Idakwo William said, you can use the basket weave method for the 3x3 matrix. If the determinant = 0 > its not linearly independent. If det doesn't = 0 > its linearly dependent

    • @nickweimer6126
      @nickweimer6126 9 ปีที่แล้ว +12

      bur lapse other way around...if determinant is equal to zero, its linearly Dependent

    • @burlapse4113
      @burlapse4113 9 ปีที่แล้ว +3

      nj weimer fixed it xD thanks

    • @reemaborashed4706
      @reemaborashed4706 4 ปีที่แล้ว +12

      Thank u for saving my 2 remaining braincells's life

  • @adamfattal9602
    @adamfattal9602 3 ปีที่แล้ว +12

    First time I watched your videos was in the 8th grade, when I was teaching myself calculus over the summer. I still find myself watching you in college when I need to review over a topic or get some practice. Thank you for all that you do, Patrick! You're changing peoples' lives, so cheers to that

  • @shamithpoojary-bk6sj
    @shamithpoojary-bk6sj 9 หลายเดือนก่อน +103

    Anyone watching this video in 2024!!?

  • @DavidMOUSSONGA
    @DavidMOUSSONGA ปีที่แล้ว +1

    Juste what i was looking for, thank you very much.

  • @sandblaster007
    @sandblaster007 4 ปีที่แล้ว +10

    Such a good tutorial, even 9 years later. Thanks!

  • @dapoog721
    @dapoog721 8 หลายเดือนก่อน +1

    I love it when my professor just decides to never show up, and still took the test as if he had been there, I literally only have a table of contents and TH-cam

  • @youzhenzhang8415
    @youzhenzhang8415 4 ปีที่แล้ว +2

    patrick jmt!!! you've helped me all throughout high school and college!! you rock my dude

  • @tamzidchowdhury472
    @tamzidchowdhury472 4 ปีที่แล้ว +1

    I've commented this about 1000 times in your videos, but God Bless You!!

  • @higgsbp139
    @higgsbp139 11 ปีที่แล้ว +1

    Simple explanations for simple concepts. My teachers somehow managed to make this convoluted. In 15 minutes you explained more than they did in 2+ hours. Kudos and much thanks:)

  • @8749236
    @8749236 9 ปีที่แล้ว +3

    The real math teacher! Patrick!

  • @Turgutgncfb
    @Turgutgncfb 10 ปีที่แล้ว +15

    Thank you for the video, but I think it is a long way, if you would like to find the case either is it linearly dependence or independence, you can find determinants. If determinants doesn't equal to zero , it means INDEPENDENCE, but if equal then DEPENDENCE (linearly.)
    BEST REGARDS FROM AZERBAIJAN

    • @mathe_ma
      @mathe_ma 3 ปีที่แล้ว +1

      You can find determinant for square matrices only. Here, it depends on problem whether we will be getting a square matrices or not.

  • @fredrikpettersen1
    @fredrikpettersen1 11 ปีที่แล้ว +2

    Yes they do, but there is a difference between knowing the subject and being able to teach it. Patrick is a very skilled teacher, and has helped me a lot. :)

  • @Usagimusical
    @Usagimusical 12 ปีที่แล้ว +2

    This is the third year that I have been referencing these math videos, and I must say you're a fantastic instructor!
    I definitely credit you for developing my passion for math!
    cheers,
    Janice :)

  • @29ibrahimsayed95
    @29ibrahimsayed95 2 ปีที่แล้ว

    Thank you Mr Patrick i remember about 10 years before when i was in 6th or 7th grade i have studied alot of exponential powers from your videos and now studying the concept of linear independence to pass my data science certificate i wholeheartedly respect you ... i am glad you still make videos for the students hope you are in good health :)

  • @stephendavis1837
    @stephendavis1837 4 ปีที่แล้ว

    You're the best!!! I have passed soooo many classes solely because of your videos.

    • @patrickjmt
      @patrickjmt  4 ปีที่แล้ว

      glad i could help you out :)

  • @Dirkadirky
    @Dirkadirky 10 ปีที่แล้ว +3

    Thanks for making these videos! I'm taking matrix algebra right now but I got a little behind. Your videos have helped me catch up! They're well made and you explain things well

  • @firasyam6282
    @firasyam6282 7 ปีที่แล้ว

    you have no idea how much this helps. thanks!!!!

  • @Crosswalknorway
    @Crosswalknorway 10 ปีที่แล้ว +4

    I absolutely love your videos, they are incredibly informative and helpful! Thanks a ton Patrick!

  • @khalidquadmill3339
    @khalidquadmill3339 3 ปีที่แล้ว

    Ur lectures is helping me in my take home IA right now.

  • @MrAlbashiri
    @MrAlbashiri 11 ปีที่แล้ว +1

    Thank you very very much, your videos helped me a lot in my studies.

  • @TheGheezoinky
    @TheGheezoinky 7 ปีที่แล้ว +2

    Thank you for this and everything else that you do. You just allowed me to ace my midterm. :)
    GodBless! (if that's the kind of thing you believe in)
    May the universe be kind to you.

  • @CasperLiHongKong
    @CasperLiHongKong 10 ปีที่แล้ว +2

    You are the best math teacher.

  • @rajeshkumarponia3772
    @rajeshkumarponia3772 3 ปีที่แล้ว

    I m truly impressed with ur English ....n you explain so well

  • @maybexable
    @maybexable 11 ปีที่แล้ว +1

    Thanks so much for your tutorials! You break it down well, easy to understand the concepts.

  • @elnulan1
    @elnulan1 13 ปีที่แล้ว

    Thanks, not only did you help me understand linear dependence you helped me to understand that I didn't understand how to properly reduce a matrix. I really thought I knew that! Guess that explains my last test grade

  • @muhammadzaid308
    @muhammadzaid308 3 ปีที่แล้ว +2

    I started watching his vids in freshman year high school, now I am a freshman in college

  • @montywu6205
    @montywu6205 9 ปีที่แล้ว +3

    Thank you so much Patrick! Your videos saved my ass for so many times!

  • @electrichorror6642
    @electrichorror6642 8 ปีที่แล้ว

    Man... You deserve more credit you are the man!!!

  • @mmxo2002
    @mmxo2002 12 วันที่ผ่านมา +2

    here I am, a 22 year old, watching this after 13 years of posting. Crazy to think about!

    • @patrickjmt
      @patrickjmt  12 วันที่ผ่านมา +2

      haha, here i am replying to it 13 years after making it :)

  • @jetswhiteout961
    @jetswhiteout961 9 ปีที่แล้ว +1

    I have a linear algebra and vector geometry final in 2 days this is great review

  • @maraltsogt3511
    @maraltsogt3511 7 หลายเดือนก่อน +6

    guess who is watching this after 12 years later. ME

    • @Peppe_01
      @Peppe_01 5 หลายเดือนก่อน +1

      Yeh it is crazy math has not changed in 12 years.

    • @Ochejewilliams58gmail
      @Ochejewilliams58gmail 2 หลายเดือนก่อน

      Same here 😅

  • @mrblini
    @mrblini 6 ปีที่แล้ว

    god dayum very well explained! my professor has very low energy and its monotoned so I always come back to ya when need help! thx

  • @burtonkorten9322
    @burtonkorten9322 9 ปีที่แล้ว +50

    epic door creek

  • @dejarno9739
    @dejarno9739 4 ปีที่แล้ว

    Appreciate you G, you make the most useful videos for the subject.

  • @intensiverleben8998
    @intensiverleben8998 5 ปีที่แล้ว

    I am from germany and can' t speak so good english but your ideas are very good! I understand it! :)

  • @izzystreaks1807
    @izzystreaks1807 7 ปีที่แล้ว

    By the way Patrick is the reason why I have been getting through engineering school, If you guys really do love him that much I suggest donating to him! He has a website and tbh he deserves it!

    • @patrickjmt
      @patrickjmt  7 ปีที่แล้ว +1

      $1/mo on Patreon and I would sincerely appreciate it. But why buy the cow when you can get the milk for free? :)

    • @izzystreaks1807
      @izzystreaks1807 7 ปีที่แล้ว

      LOL xD If you say so!

  • @shannokhan6300
    @shannokhan6300 9 ปีที่แล้ว +1

    Ur video lecture has really helped me alot for my exams.Thanks alot............

  • @kyrajohnsonx
    @kyrajohnsonx 7 ปีที่แล้ว

    this guy is the greatest of all time

  • @LifeWithGod99
    @LifeWithGod99 11 ปีที่แล้ว +8

    appreciate your work, it`s very useful!

  • @ZakiBadr
    @ZakiBadr 4 ปีที่แล้ว

    Thanks, Mr.Patrick

  • @fishykey
    @fishykey 6 ปีที่แล้ว

    You're saving my life !! Thank you so much!!!! Your videos are awesome!

  • @shabirhs4429
    @shabirhs4429 3 ปีที่แล้ว

    Dude you are amazing gonna love this video

  • @facebooktv6244
    @facebooktv6244 6 ปีที่แล้ว

    Thank you very much King, you helped me to solve my problem you are very good in explaining

  • @KeeganWoodward
    @KeeganWoodward 11 ปีที่แล้ว

    i heart you. so much. finals would suck if you didn't do what you do.

  • @Benjofresh
    @Benjofresh 12 ปีที่แล้ว

    You sir are a gentleman and a scholar.

  • @karlbacalando427
    @karlbacalando427 6 ปีที่แล้ว

    Thank you for helping me to pass our periodical test

  • @serendipitous5497
    @serendipitous5497 4 ปีที่แล้ว +1

    Well explained

  • @mrblini
    @mrblini 6 ปีที่แล้ว +3

    my man, again, lots of good stuff, lots of energies in your teaching. very good stuff

  • @orsbertsawe7768
    @orsbertsawe7768 2 ปีที่แล้ว

    Things become easy for your help 🙏🙏

  • @marjanalhaque9865
    @marjanalhaque9865 3 ปีที่แล้ว

    you also check by solving determinant.if the determinant is zero(0) then it will be dependent otherwise independent

  • @ninadgandhi3733
    @ninadgandhi3733 4 ปีที่แล้ว

    Just what i was looking for! Thanks

  • @49ramandeepverma77
    @49ramandeepverma77 6 ปีที่แล้ว

    Excellent I am 101 percent satisfied easy method by you thank you sir you will our maths professor in gju university

  • @MrEvilPandah
    @MrEvilPandah 12 ปีที่แล้ว

    And again PatrickJMT saves the day :> thanks a lot sir!

  • @CouponsFTW
    @CouponsFTW 11 ปีที่แล้ว

    thank the math gods for this video. was learning this in lecture today and i had no idea what was going on D:

  • @niklasammitzbllrasmussen2781
    @niklasammitzbllrasmussen2781 11 ปีที่แล้ว

    Watched the first one and a half minute, and got exactly the answer I was looking for. :D

  • @milkwasabadcholce
    @milkwasabadcholce 8 ปีที่แล้ว

    Yes!!!! I knew I could depend on pat! Another great video!

  • @JackWutang
    @JackWutang 6 ปีที่แล้ว

    You're a lot better than my college professor.

  • @RhemaBassey
    @RhemaBassey 9 ปีที่แล้ว

    Dude thanks man, Now I dont have to sit in class staring at the board confused, like if my teacher is doing magic

  • @amandaniess7028
    @amandaniess7028 6 ปีที่แล้ว

    I will support u when I finnish my education in 5 years and become rich. But right now I need to support myself. xD Love your videos! Keep up the good work! :)

  • @adrianbogdy
    @adrianbogdy 11 ปีที่แล้ว +2

    Great work bro, I really appreciate your work, this lesson was very useful.

  • @oldisgold4286
    @oldisgold4286 5 ปีที่แล้ว

    thanks sir, i have learned almost 100% linear independence and dependence..............

  • @agapitoserrato9126
    @agapitoserrato9126 4 ปีที่แล้ว

    I got this video in my recommended today. But I used your great videos to get through lots of math and chemistry classes. I missed you PatrickJMT and I'm glad I found you again

    • @patrickjmt
      @patrickjmt  4 ปีที่แล้ว

      welcome back my friend :)

  • @matthewfears5064
    @matthewfears5064 11 ปีที่แล้ว

    Is someone on a quest to dislike every Patrick video? I just cannot imagine anyone not liking and getting a better understanding after watching his videos.

  • @prabinlamsal5125
    @prabinlamsal5125 5 ปีที่แล้ว +1

    His voice is amazing.

  • @wagyu2733
    @wagyu2733 2 ปีที่แล้ว

    probably should of watch this video before my specialist maths exam

  • @patrickjmt
    @patrickjmt  13 ปีที่แล้ว +6

    @afiqjenoba well, i hope a student of linear algebra would grasp that : ) and i emphasis that any value of k gives a solution, so it should be pretty clear i think to anyone listening!

  • @keeler1160
    @keeler1160 6 ปีที่แล้ว

    Man I'm so relieved.

  • @davidfield5295
    @davidfield5295 8 ปีที่แล้ว +41

    Excellent videos, I always wonder who the losers are who give these videos thumbs down

    • @choodooloo8133
      @choodooloo8133 8 ปีที่แล้ว +46

      Disgruntled professors

    • @Warningcode1
      @Warningcode1 8 ปีที่แล้ว +5

      David Field kids who are dumb and still don't get it

    • @raghuvamsiu1287
      @raghuvamsiu1287 7 ปีที่แล้ว

      You have answered it David. "Losers!!".

    • @adv3nturetime
      @adv3nturetime 6 ปีที่แล้ว

      Not everybody learns the same way.

  • @gdragon1268
    @gdragon1268 8 ปีที่แล้ว

    you have saved my life soooooo many times

  • @williamidakwo2953
    @williamidakwo2953 9 ปีที่แล้ว

    Thanks for the video. I must say it was helpful.

  • @ceciliablomberg1757
    @ceciliablomberg1757 10 ปีที่แล้ว +1

    Turgut, i think you are totally right, in this case you can use the determinant and get the answer. But what about if it wasn't a 3*3 Matrix, then you have to go Patricks way, and i actually think it's better to learn Patricks way from the beginning :)) But you are 100 % right you can use the determinant in this case. :)

  • @mohammadahmermalick7869
    @mohammadahmermalick7869 6 ปีที่แล้ว

    everything goes easy when you teach

  • @joncolumbino744
    @joncolumbino744 4 ปีที่แล้ว

    So helpful thanks dude

  • @AmeliaFox
    @AmeliaFox 3 ปีที่แล้ว

    thank you my dude. legend.

  • @patrickjmt
    @patrickjmt  12 ปีที่แล้ว

    @Usagimusical glad i could help : )

  • @Turgutgncfb
    @Turgutgncfb 10 ปีที่แล้ว

    3*3 Matrix , in this case, you shoul finde rank of matrix, if rank of matrix smaller than number of variables, it means linearly dependent, but if rank of matrix equal or greater than number of variables , then linearly independant

  • @itsjamal96
    @itsjamal96 6 ปีที่แล้ว

    Good explanation.
    Thanks

  • @vasanthkumarcroos8605
    @vasanthkumarcroos8605 3 ปีที่แล้ว

    Excellent sir

  • @patrickjmt
    @patrickjmt  13 ปีที่แล้ว

    @GreatTemplar glad i could help : )

  • @sijianzhou1856
    @sijianzhou1856 5 ปีที่แล้ว

    ty so much I learned a lot from here.

  • @drewbrouwer6701
    @drewbrouwer6701 12 ปีที่แล้ว

    He associates a1, a2, and a3 with a new variable, k, to show that there are infinitely many non-trivial solutions to the set of equations described by the matrix. Not only does this prove that the set of vectors is linearly dependent, but a set of solutions is described by [a1=(-1/2)k, a2=(-5/8)k, and a3=k] for which k can be any real number. If you plug any real number in for k, find the associated a1, a2, a3, and plug these into your definition of linear (in)dependence the result will be zero.

  • @stefanmilunovic9434
    @stefanmilunovic9434 5 ปีที่แล้ว

    You are true hero, thank you!

  • @katiedoucet4748
    @katiedoucet4748 10 ปีที่แล้ว

    ugh answered my question in 47 seconds.... THANK YOU

    • @spag5296
      @spag5296 5 ปีที่แล้ว

      I'm chuckling right now at how simple this really is when he presents it 🤧

  • @anilpirwanii
    @anilpirwanii 3 ปีที่แล้ว

    Why are youtube teachers ALWAYS better than our university professors?

    • @Rokii19As
      @Rokii19As 5 หลายเดือนก่อน

      because they are getting high salary from TH-cam 😂😂

  • @chemist7908
    @chemist7908 5 ปีที่แล้ว

    Thank you Patrick !!!

  • @bowmanzz1
    @bowmanzz1 6 ปีที่แล้ว

    God Bless you, sir.

  • @mevlanisufi2100
    @mevlanisufi2100 9 ปีที่แล้ว +16

    Why u just dont compute the determinant of the matrix. If the answer is 0, that means they are linearly dependent.

    • @DDWildlifeConservation
      @DDWildlifeConservation 9 ปีที่แล้ว +2

      +Mevlan Isufi At 5:00 why he is getting zero on the 1st row 2nd column? Does anyone know that?

    • @Marwa-jg9pn
      @Marwa-jg9pn 8 ปีที่แล้ว +1

      +Dora Dağlaraşar He is trying to reduce it, to become the identity of a 2 x 2 matrix

    • @DDWildlifeConservation
      @DDWildlifeConservation 8 ปีที่แล้ว +2

      +Marwa AlRuzaiqi thanks man, actually my exam was passed but still thanks.

    • @Marwa-jg9pn
      @Marwa-jg9pn 8 ปีที่แล้ว +1

      No problem, hope you did good :)

    • @nightmares_
      @nightmares_ 7 ปีที่แล้ว +6

      You can only find the determinant of a square matrix, and not every matrix you come across will be nxn.

  • @patrickjmt
    @patrickjmt  13 ปีที่แล้ว

    @afiqjenoba i am not sure i understand. since the equation has solutions for nonzero values of at least one of: a_1, a_2, a_3 (i show this generically by using the ' k ' notation ) we can say it is linearly dependent.

  • @fireflies15
    @fireflies15 5 ปีที่แล้ว

    thank youuu excellent explanation

  • @dishamanjunatha7735
    @dishamanjunatha7735 7 ปีที่แล้ว

    Thank you, you're a blessing!!!!

  • @ccwing33
    @ccwing33 9 ปีที่แล้ว

    very helpful and clear!thank you

  • @BaljitSinghmonty
    @BaljitSinghmonty 9 ปีที่แล้ว

    thanks patrickJMT .

  • @redhotkido
    @redhotkido 11 ปีที่แล้ว

    have a test soon yay for this vid.

  • @mikes3637
    @mikes3637 11 ปีที่แล้ว

    i didnt get how did you take a3=0. rest was reall help. you deserve gold medal.

  • @aniketsalve8558
    @aniketsalve8558 9 ปีที่แล้ว +1

    thanks bro its help me much

  • @thefirstsurvivor
    @thefirstsurvivor 7 ปีที่แล้ว +3

    if you see a free variable doesn tthat automatically mean linearly dependent

  • @polychenko
    @polychenko 11 ปีที่แล้ว +2

    could you explain it without using the word vector and with no equations? Conceptually can't this be explained simply in a few sentences so non-mathmaticians can understand it?