Using the TI-84 to solve systems of equations with 3 variables

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  • Опубликовано: 20 янв 2025

Комментарии • 54

  • @raymondgonzalez7772
    @raymondgonzalez7772 Год назад +10

    Thank you very much. I am taking a fast-paced finite math course and I was stuck on this type of problem for several hours. I decided to go to bed and try in the morning. Yours was the second video that came up when I searched, and it worked/explained perfectly.

  • @dcsports2450
    @dcsports2450 7 лет назад +18

    Thanks so much. My instructor for my math course is not a very good teacher, she s a wonderful person, but her videos are so confusing. I appreciate you taking this step by step and added the little steps on the calculator. I understand now. God bless

  • @paulaacocal3655
    @paulaacocal3655 7 лет назад +55

    you just saved my life

  • @DonaldMurf
    @DonaldMurf 6 лет назад +47

    This should be a 3x4 matrix that has what the equations are equal to. I honestly think this video only teaches people how to take a long and unnecessary route to increase their chances of bombing a pre-calc test.
    matrix a =5,3,2,2
    2,1,-1,5
    1,4,2,16
    rref([A])
    1,0,0,-2
    0,1,0,6
    0,0,1,-3
    x,y,z
    x=-2
    y=6
    z=-3

    • @rewatpathak7917
      @rewatpathak7917 5 лет назад +1

      indeed

    • @mons9974
      @mons9974 2 года назад

      @Intellektual Oyunlar where is rref

    • @AlejandroHerrera-zs6cz
      @AlejandroHerrera-zs6cz 2 года назад +1

      @@mons9974 if you go to MATRIX and scroll to the right where it says MATH, scroll down and you'll find rref

    • @Test78-dm1be
      @Test78-dm1be Год назад

      I think that does the Gaussian method for you

  • @rajthomas4224
    @rajthomas4224 3 года назад +7

    OMG, this makes it so much easier by doing this. Thank you!

  • @PhediasHideous
    @PhediasHideous 3 месяца назад

    You don't understand how much this is going to help me

  • @maraarlo419
    @maraarlo419 7 лет назад +13

    Thanks it’s very useful , I just have one note about the solution in your pc, the answer of the matrix is: (-2,6,-3) not (-2,6,+3) the last number in the answer’s matrix is -3 instead +3. Thanks again for you explain ^_^

  • @s3siddh
    @s3siddh 3 года назад +4

    Thank you so much! This helped me out so much with my math homework.

  • @GumboGary1
    @GumboGary1 4 месяца назад

    I missed a few days of school and I missed the notes on how to do this so thank you very much, sir

  • @macnasty2001
    @macnasty2001 6 лет назад +7

    wouldnt it be a 3 by 4?
    you include the answer of each variable...

    • @bendovergotnothingonme922
      @bendovergotnothingonme922 5 лет назад +1

      No the products have to be seperate so that's what the matrices B is for to put in the forth value to get the inverse

  • @The8thblock
    @The8thblock 7 лет назад +2

    any idea what i could be doing wrong? when hitting x^-1 and enter i keep getting the error singular matrix. edit: so no idea why but on a different problem this worked just fine. idk what it was about the other one it did have 3 solutions when i did it by hand

  • @batracio2
    @batracio2 2 года назад +1

    Only 3x3? 5x5, not?

  • @sofiahernandez379
    @sofiahernandez379 5 лет назад

    ¡Muchas gracias por este video! Best one on RUclips! :))))

  • @bradleyhecker3704
    @bradleyhecker3704 4 года назад +1

    This is clutch. Thank you so much

  • @Jesus_Paid
    @Jesus_Paid 7 лет назад +1

    Why did you have to take the inverse of matrix A when you typed: (A^-1*B)? What do the set of answers mean when we don't take the inverse of the two matrix's and just type in: (A*B)?

  • @lissaward8833
    @lissaward8833 4 года назад

    Sir thank you so much I truly appreciate all you do again thank you

  • @susansanders5325
    @susansanders5325 7 лет назад +1

    Super video. Easy to understand!

  • @SheLuvsShawn
    @SheLuvsShawn 2 года назад +1

    I literally love you 😂

  • @javiermarcial2650
    @javiermarcial2650 6 лет назад

    How do you know which number belongs to which variable

    • @whenyou238
      @whenyou238 10 месяцев назад

      It’s going down a straight line, you’re essentially removing the variables and writing then down in a matrix like how they were lined up. As seen in the video

  • @thelifeofaboi2693
    @thelifeofaboi2693 6 лет назад +6

    I keep getting ERR: INVALID DIM

  • @matthewezell3975
    @matthewezell3975 4 года назад

    If I could give you a million likes, I would!

  • @biancasanchez-t5f
    @biancasanchez-t5f Год назад

    thanks you!! perfectly explained

  • @Chang-hf2hs
    @Chang-hf2hs Год назад

    It seem like that there's a trivial hiccup of the final solution in your powerpoint here(since the solution in your calculator is (-2,6,-3), not (-2,6,3)). But it doesn't matter, thanks for your sharing!!!

  • @6519980407
    @6519980407 8 лет назад +3

    Great video thanks

  • @huhyunjoy
    @huhyunjoy Год назад

    tysm my teacher put down an explanation and it was completely wrong

  • @mohammedArif-kr6yr
    @mohammedArif-kr6yr 6 лет назад +2

    That was amazing thank u

  • @magajiauwalu1229
    @magajiauwalu1229 2 года назад

    Urgent please!!!
    How can I solve these equations:
    X+Y+Z=4
    X^2+Y^2+Z^2=14
    X^3+Y^3+Z^3=34

  • @rockystar7465
    @rockystar7465 2 года назад

    You are amazing

  • @valeriacavalieri1781
    @valeriacavalieri1781 4 года назад

    thank you so much!!

  • @strafe4894
    @strafe4894 4 года назад

    Thank you so much

  • @sergioandrescanarlozano6789
    @sergioandrescanarlozano6789 5 лет назад

    You just saved my IB

  • @chicagomando3066
    @chicagomando3066 Год назад

    Life saver

  • @iswelt
    @iswelt 2 года назад

    GOAT

  • @millenium2003
    @millenium2003 2 года назад

    Update your OS.

  • @justintuyennguyen
    @justintuyennguyen 2 года назад

    Thank you

  • @JohnHerbert-pk6yu
    @JohnHerbert-pk6yu 7 лет назад

    Thanks!!

  • @2molphys
    @2molphys 3 года назад

    You saved me

  • @matthewezell3975
    @matthewezell3975 4 года назад

    THANK YOOOOOUUUUUUU!!!

  • @miroslaw5615
    @miroslaw5615 11 месяцев назад

    count the number of OKs :) ok?

  • @adidaigebremskel7650
    @adidaigebremskel7650 6 лет назад

    Thanks

  • @84toanpham
    @84toanpham 4 года назад

    thank

  • @MojoJojoZB
    @MojoJojoZB Год назад

    I love you

  • @guznem9032
    @guznem9032 3 года назад

    i’m a junior in high school, just regular class too, no honors, no ap, why are people in college doing this 🥲