Using Cramer's Rule in a 3 x 3 Matrix

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  • Опубліковано 3 жов 2024
  • From Thinkwell's College Algebra
    Chapter 8 Matrices and Determinants, Subchapter 8.3 Determinants and Cramer's Rule

КОМЕНТАРІ • 101

  • @VeggiePilot
    @VeggiePilot 7 років тому +87

    "This is kind of like determinant central folks! So many determinants so little time."
    This guy is the man

    • @sabinmihigo4538
      @sabinmihigo4538 6 років тому +2

      My teacher gave me 50 questions of 3 x 3 Matrix to solve in 5 hours! and I failed

    • @andrerathje
      @andrerathje 6 років тому +1

      lol I know right Veggie Pilot!

    • @hambreezy
      @hambreezy 6 років тому +1

      I laughed my ass off when he said that

  • @levanabryant4357
    @levanabryant4357 5 років тому +24

    I love these videos... this is literally what’s helping me pass college algebra 😭

  • @alucard73
    @alucard73 4 роки тому +3

    Beyond incredibly helpful. What I could not learn in 5 hours of class, I learned in 5 minutes.

  • @atikhasan9365
    @atikhasan9365 Рік тому +1

    Sir! 🥰
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    I'm watching this video in 2022 from Bangladesh.

  • @heatherbwilliams3149
    @heatherbwilliams3149 4 роки тому +2

    this dude is basically passing excelled math for me... THANK YOU

  • @sprink2006
    @sprink2006 7 років тому +17

    Most helpful I video I have found on Cramer's Rule! Actually computes determinates in the way I learned!

  • @titop96
    @titop96 8 років тому +1

    There is a reason this video has no thumbs down! Big thumbs up from me. Quality video.

  • @praduambharti5944
    @praduambharti5944 5 років тому +7

    THANK U SIR I EASILY UNDERSTAND YOUR CONCEPT

  • @daniv5440
    @daniv5440 5 років тому +4

    Hopefully I pass my math final tomorrow, this helped tremendously thank you

  • @luckydehingia2894
    @luckydehingia2894 6 років тому +3

    Thank u so much sir...I understood..your explanation is so nice

    • @janvisabale9419
      @janvisabale9419 6 років тому

      Lucky Dehingia hey 2:04 how +2 y the +sign plz explain me 😑

    • @samasthasunoj5140
      @samasthasunoj5140 6 років тому

      janvi sabale
      Minus*Minus= plus

  • @petyangNetwork
    @petyangNetwork 3 роки тому

    Thank you 😊. You've helped me Alot

  • @toochin2419
    @toochin2419 5 років тому

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  • @ThebigGLRams
    @ThebigGLRams 8 років тому +4

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    @hajiratanvir7hajiratanvir899 4 роки тому

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  • @soundgod6862
    @soundgod6862 3 роки тому

    Perfect video to learn easily on cramers rule 😍👻

  • @EpicSelenium34
    @EpicSelenium34 4 роки тому +2

    So regardless of whether or not the coefficients of the matrix are positive or negative, you always use the + - + pattern when adding each individual determinant?

    • @carultch
      @carultch Рік тому

      No. You overlay the pattern of signs on the pattern of signs you inherit from the matrix you're working with. Two same signs, mean the term is positive. Two opposite signs mean the term is negative.

  • @DEEPAKSONI-qj8qq
    @DEEPAKSONI-qj8qq 5 років тому +1

    धन्यवाद आदरणीय गुरुजी

  • @王八蛋-d3x
    @王八蛋-d3x 2 роки тому +1

    1:36 did he say “the 3x3 baby”😂

  • @limitless5337
    @limitless5337 5 років тому +2

    Like that you mention that the solution is where the three equations meet

  • @terencewright2223
    @terencewright2223 3 роки тому

    Excellent video,thank you very much.

  • @harrydry1
    @harrydry1 8 років тому +4

    Very Very helpful

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    @rayfordbanda4929 5 років тому +1

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    @jahnavikarna5701 5 років тому +1

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  • @mairo610
    @mairo610 Рік тому

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  • @royrosales81
    @royrosales81 8 років тому +1

    These are great videos! Much simpler to understand than my textbook. Thanks again!

  • @expidotapologo5999
    @expidotapologo5999 7 років тому +1

    "Nd then i will explain here juss for fun" hahahaha

  • @mahin2720
    @mahin2720 6 років тому

    I am from Bangladesh. Thank you very much sir.

  • @adequatemuliebrity7516
    @adequatemuliebrity7516 5 років тому +1

    Wow!I'm in year 9 and I must say Sir I learned something new and useful!!!This is surely interesting and easy (because of how you explained it) Thanks a lot Sir!

    • @jessephiri7834
      @jessephiri7834 3 роки тому +1

      Year 9 what the hell you doing medical

  • @fritzfantom8161
    @fritzfantom8161 2 роки тому

    Thank you kind man in the purple shirt

  • @rammaddirala6857
    @rammaddirala6857 2 роки тому

    Yeah the videos from 2014 are helping...

  • @ezra2370
    @ezra2370 3 роки тому

    dude, i don't believe this was so easy

  • @supriyashinde9316
    @supriyashinde9316 6 років тому +1

    Thank you so much sir... Very most helpful

  • @ejajsheikh6670
    @ejajsheikh6670 5 років тому

    Good explain

  • @abdirazak.a8336
    @abdirazak.a8336 4 роки тому

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  • @jagr1460
    @jagr1460 5 років тому

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  • @brenmclean
    @brenmclean 6 років тому +1

    Thank you! Personally, I prefer using Sarrus' rule to calculate the Determinants. Anyone else?

    • @carultch
      @carultch Рік тому +1

      I don't understand why anyone teaches determinants of 3x3 matrices any other way. It's literally down-right easy to use the Sarrus rule. The down-right diagonals are positive, the opposite diagonals are negative.
      Maybe the idea is to get people ready for 4x4 and higher, where the Sarrus rule doesn't work anymore, and you have to actively think through the sub-determinants and sign pattern.

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    @sultanrivaldirizal8159 9 років тому

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    @abraarjamaluddin 5 років тому

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    @ryannajames7687 Рік тому

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    @benudharmitra9563 2 роки тому

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    @charlesamofordjuoh9940 8 років тому +1

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  • @Hussain_Albanna
    @Hussain_Albanna 5 років тому

    great video

  • @salmanblouch5858
    @salmanblouch5858 4 роки тому

    15 number complete in this question tommorow inshallah

  • @rache1sc123
    @rache1sc123 8 років тому +2

    Thank you!

  • @ablecomfortnkurunziza193
    @ablecomfortnkurunziza193 2 роки тому

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  • @boccaluppo930
    @boccaluppo930 4 роки тому

    Can you go slow?

  • @ghala7669
    @ghala7669 2 роки тому

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    @kiyarikundasantrina3370 3 роки тому

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  • @ashu8593
    @ashu8593 5 років тому

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  • @msmshabry6824
    @msmshabry6824 4 роки тому

    better explanation than others. hats off SIR!

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    @annamarie_p 5 років тому

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    @teckluv4413 8 років тому

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    @virajsandakelum7900 2 роки тому

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    @afomyagetachew3197 3 роки тому

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  • @bujjikanna6448
    @bujjikanna6448 6 років тому

    Very good explanation
    Thank you sir

  • @b.g.m7631
    @b.g.m7631 5 років тому

    Thank you very much sir

  • @tasviahmednaeem7359
    @tasviahmednaeem7359 6 років тому

    Thanks 🙏🏻 it’s really helpful

  • @santoshjaiswal1086
    @santoshjaiswal1086 5 років тому

    this is what helps me to remember algebra......

  • @Shivamyadav-gy4nf
    @Shivamyadav-gy4nf 5 років тому +1

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  • @Speed_junkies09
    @Speed_junkies09 5 років тому

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    @Ammar.youtube 6 років тому

    Nice

  • @andrewchiziba8744
    @andrewchiziba8744 6 років тому

    Direct and straight forward.
    Thank you.

  • @aparnakumari9344
    @aparnakumari9344 5 років тому

    Thanks a lot 😊

  • @dipaktarde9645
    @dipaktarde9645 5 років тому

    Thank you so much for your help!

  • @SoniGTechnical
    @SoniGTechnical 6 років тому

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    @takudzwaruzvidzo3413 6 років тому

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  • @getnetwale8450
    @getnetwale8450 4 роки тому

    how to solve if D=0????

    • @carultch
      @carultch Рік тому

      If the determinant is zero, that means you either have redundant or contradictory equations, and there either is no solution, or infinitely many solutions.
      In the event that there are infinitely many solutions, there is a subspace of possible solutions, which will be evident when Gauss-Jordan elimination generates an entire row of zeros. The way to solve it, is to take Gauss-Jordan elimination as close as possible to the identity matrix, and it will establish a set of constraints that lock down the subspace of possible solutions.

  • @sospeterngunjiri5157
    @sospeterngunjiri5157 6 років тому

    Very helpful, thank you sir

  • @DineshMaharajmandateconsultant
    @DineshMaharajmandateconsultant 7 років тому

    THANK YOU

  • @gabbywambui63
    @gabbywambui63 5 років тому

    Thank you good sir

  • @nyamburawachira2572
    @nyamburawachira2572 6 років тому

    Thank you so much for your help!

  • @rileytanner8945
    @rileytanner8945 6 років тому

    who disliked this video

  • @zoonkauj999
    @zoonkauj999 7 років тому

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    @Sumitkumar-pq3hv 5 років тому

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    From INDIA

  • @ridashehzadi531
    @ridashehzadi531 6 років тому

    Good explanation.

  • @bradtagegogona7076
    @bradtagegogona7076 7 років тому

    niice...thnks a lot

  • @ranaumer6408
    @ranaumer6408 7 років тому

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    @mdfaizan2626 5 років тому

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    @deguzmanprincessyvan1882 7 років тому

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  • @sathyaraj8295
    @sathyaraj8295 7 років тому

    thanks

  • @saf-wanadame5828
    @saf-wanadame5828 8 років тому +1

    why don't u use nxn examples of matrices where n>=4 ???
    :/

    • @sem5776
      @sem5776 6 років тому +1

      its gonna take a lot more time to compute 4x4 determinants

  • @AqsaKhan-nr2lo
    @AqsaKhan-nr2lo 6 років тому

    V.gud

  • @wankitsi159
    @wankitsi159 5 років тому

    that ok in the opening line of video scared me