Grade 12 Calculus Lesson 1 | Finding the Derivative from First Principles | Mlungisi Nkosi

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  • Опубликовано: 7 окт 2024

Комментарии • 123

  • @Efootball_Tv-i7n
    @Efootball_Tv-i7n 7 месяцев назад +127

    I got 70% in mathematics ❤🎉 moving from 43 to 70 isn't a joke thank you Malome

    • @zee_yot
      @zee_yot 6 месяцев назад +5

      Wat was ur study method

    • @lowkeydemodest8381
      @lowkeydemodest8381 5 месяцев назад +1

      Please tell us your study method dawg

    • @Efootball_Tv-i7n
      @Efootball_Tv-i7n 5 месяцев назад +2

      @@lowkeydemodest8381 Hey y'all.📑
      1. UNDERSTAND THE BASICS: Make sure you have a strong foundation in fundamental concepts like fractions, decimal, geometry etc.
      2. BREAK IT DOWN: Break down complex topics into smaller manageable chunks, focus on one concept at a time.
      3. PRACTICE CONSISTENTLY: Regular practice helps build math muscle! Set aside a specific time each day to practice solving problems.
      4. USE A VARIETY OF RESOURCES :
      -Textbooks
      -online resources (khan academy, math way but the one I recommend the most *Siyavula*)
      -video lectures
      -practice worksheets (past papers)
      -online forums(Reddit, stock exchange etc)
      5. WORK ON THE PROBLEM-SOLVING STRATEGIES :
      -read the problem carefully
      -identify the type of problem (algebra, geometry etc)
      6. SEEK HELP WHEN NEEDED: Don’t hesitate to ask teachers classmates, or online resources for help when you're stuck.
      7. APPLY MATHS TO REAL LIFE SITUATIONS : Try to relate math concepts to everyday life. This helps make math more meaningful and interesting.
      8. TAKE BREAKS: Math can be challenging, so take breaks to refresh your mind and come back to problems with a fresh perspective.
      9. STAY ORGANIZED: Keep all your study materials, including notes and practice problems, organized and easily accessible.
      ❤I promise if you follow this... You will achieve and above all PRAY NEVER NEGLECT YOUR LORD JESUS CHRIST✝🥺

    • @lowkeydemodest8381
      @lowkeydemodest8381 5 месяцев назад +1

      Dawg,I'm desperate over here
      Again PLEASE tell us your STUDY METHOD! 😫

    • @nta31
      @nta31 5 месяцев назад +1

      Malume
      Practice problem with that math grade 12 app
      Corrections
      Then a proper excam set up for that topic amd Corrections again
      Practice everyday ❤

  • @l_e_a_h
    @l_e_a_h 2 года назад +158

    i had a hard time with my mathematics exams last year .but now i want to rewrite and do better . and with an incredible teacher like you i will do better🥰.thank you sir ❤may you be blessed☺

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +11

      My pleasure. All of God’s best to you

  • @jin00305
    @jin00305 2 года назад +75

    My answer for the last example is f'(x) = -6x.
    Thank you for the lessons sir!

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +8

      You’re welcome ☺️

    • @khayelihlemercury3508
      @khayelihlemercury3508 2 года назад

      Grade 12 Geography Contents (Theory and Map work) ruclips.net/channel/UCM9s66LrpIUeorALdgPoEuA

  • @philnkosi8315
    @philnkosi8315 2 года назад +89

    By far the best matric teacher on RUclips

  • @Enzyy_1X
    @Enzyy_1X 2 года назад +36

    you are a natural, as i have more understanding than I did before, your advantageous input towards our studies is exponentially appreciated

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +12

      Lol… Wow your level of English 😂

  • @cassiusmbhalati6523
    @cassiusmbhalati6523 2 года назад +16

    Sir i was q bit confused when we started but when we were doing examples i managed to understand and my answer for the exercise is f'(x)=-6x🔥

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +1

      Thank you 😊

    • @khayelihlemercury3508
      @khayelihlemercury3508 2 года назад

      Grade 12 Geography Contents (Theory and Map work) ruclips.net/channel/UCM9s66LrpIUeorALdgPoEuA

  • @raeesagoolam4827
    @raeesagoolam4827 Год назад +12

    Oh wow what an excellent teacher. Got my answer -6x 😅

  • @thando_tlng
    @thando_tlng Год назад +7

    ❤❤❤Sbonge eei video sir , because siya gowisha . Our teachers did not listen in university like u and andise bored because maye we are paying school fees for what to learn nothing 😭😭💔Thank you Mr M because wow without you ngabe angazi

  • @andimakhado5600
    @andimakhado5600 Год назад +5

    Wow you are the best no i actually understand this topic much better than before 😔😔😔👊👊👊 thanks SIR

  • @bapelampho9981
    @bapelampho9981 Год назад +3

    Thank you for the best lesson i wish I met you earlier, now I believe that maths and science is not difficult

  • @Sp4nkd4ddy
    @Sp4nkd4ddy 2 года назад +8

    I found my derivative it’s -6x
    Thank you so much king

  • @Tho_bee_leighh
    @Tho_bee_leighh 2 года назад +14

    I have been waiting for this one.Thank you sir.🙏🏽

  • @khanyamethusi8127
    @khanyamethusi8127 2 года назад +5

    Thank you sir for making this topic easy to understand

  • @dudavandrose7808
    @dudavandrose7808 2 года назад +8

    Thank you soo much Mr Nkosi for giving us this information as simple as possible...as a Student teacher your videos are helping me soo much in delivering the content...Big up and God bless you.
    And if I may ask one question. What is the name of the software that you are using to deliver this content...thank you soo much for your response in advance

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +1

      You’re most welcome. I’m using an app called Note

  • @pholoshomasethe8038
    @pholoshomasethe8038 11 месяцев назад +2

    Mr Mlungisi sir, what happens when you get both a square root and a fraction and then they ask for the first principle ?

  • @oliviabeegaobuse1979
    @oliviabeegaobuse1979 2 года назад +2

    To the best teacher in the world 🥺🦅

  • @belayalachew7890
    @belayalachew7890 Год назад +1

    I appreciate for you be continued but I suggest for you can show the rules and theoreticall parts please 🙏

  • @ShadreckKalonga
    @ShadreckKalonga Год назад +1

    Thank you very much you have helped me alot

  • @shes.li_melanin
    @shes.li_melanin 2 года назад +1

    now i understand this topic ..some how its my favourite...my answer to the exercise is f(x)=-6x

  • @amahlemdabuli2690
    @amahlemdabuli2690 2 года назад +5

    Thank you sir for introducing this topic early thank you very much.. And i'd like to ask a question by your second example why didn't you just multiple exponent ^3 and get (x^3+3xh+h^3-x^3) ** (^) by that I'm meaning exponent

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +2

      Oh yah that’s another option as well

    • @amahlemdabuli2690
      @amahlemdabuli2690 2 года назад +2

      @@MlungisiNkosi I got a different answer sir..

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +2

      @@amahlemdabuli2690 oh I see where the mistake is… Please rather expand (x+h)^3 like I did.

    • @amahlemdabuli2690
      @amahlemdabuli2690 2 года назад +2

      @@MlungisiNkosi thank you sir..

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +1

      @@amahlemdabuli2690 my pleasure

  • @lakhazimlamlunguzi
    @lakhazimlamlunguzi Год назад +1

    I am new to the channel thank you sir I learned so much .❤️

  • @tandzilematsenjwa9811
    @tandzilematsenjwa9811 Год назад +1

    This is helpful thank you It seemed impossible..

  • @oliviabeegaobuse1979
    @oliviabeegaobuse1979 2 года назад +1

    To the best teacher in the world 🦅🕯

  • @Miliiiiiii315
    @Miliiiiiii315 2 года назад +3

    God bless you, sir.

  • @leybowrams
    @leybowrams 2 года назад +1

    I enjoyed this even though it's a new topic and all

  • @NontandoMbeje
    @NontandoMbeje Год назад +1

    Thank you so much Sir ❤️

  • @juliannoti506
    @juliannoti506 2 года назад +1

    Thank you sir so much for this..been waiting.

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад

      You know I’m always your plug

    • @maleniel_gen.x896
      @maleniel_gen.x896 2 года назад +1

      I second that 🙆🏽‍♂️😫I struggle with this big time

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад +1

      @@maleniel_gen.x896 I’m your plug 😊

  • @AkhonaMgabashe-gf5sj
    @AkhonaMgabashe-gf5sj Год назад

    Sir please do this question f(X) =-x3+13x+12 given co-ordinates of D(-1;0) the want the x-coordinates of A and B

  • @MORT_ALA
    @MORT_ALA Год назад +2

    I found f'(×)=-6×
    Please correct me if I'm wrong
    Thanks sir

  • @opwizardyt2317
    @opwizardyt2317 2 года назад +2

    Sir i got f'(x)=6x... unfortunately i didnt get a negative answer and idky

  • @shudumutepe4768
    @shudumutepe4768 2 года назад +1

    On the 2nd example...after simplifying (x+h)^3- x^3...why did you change -x^3 -to x^2

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад

      It must’ve been a mistake. Sincere apologies

    • @shudumutepe4768
      @shudumutepe4768 2 года назад

      @@MlungisiNkosi owww sorry I didnt finish the entire video before commenting i saw that you changed it back to x^3

  • @MahadSalman-m1o
    @MahadSalman-m1o Год назад

    BROTHER, GREAT VIDEO!
    WHICH SOFTWARE ARE YOU USING?

  • @zanonoza4918
    @zanonoza4918 Год назад +2

    It's worth-staying on this channel ______ Fully agree with you sir 🪑🏃

  • @emmarenciastudy5092
    @emmarenciastudy5092 2 года назад +2

    my answer for the last example is -6x

  • @khanyisilethabethe2408
    @khanyisilethabethe2408 2 года назад +3

    good morning sir✨😉hope you good
    where can i get the corrections for the exercises you gave us

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад

      I’ll pin them on the comments section

  • @kundaimaiwasha7391
    @kundaimaiwasha7391 2 года назад +1

    Cubing is not your thing😂😭
    I'm grateful for you❤️

  • @moniccalerutla8300
    @moniccalerutla8300 Год назад +2

    Hello sir I'm new in this group and I would like to join your sessions and get help because I'm suffering with mathematics.... I would appreciate it if you allow me 🙏🏻🙏🏻🙏🏻

  • @nokwakhemasinga2671
    @nokwakhemasinga2671 Год назад +2

    I got a -6x as a answer I hope it's correct

  • @jeanetterabotapi1562
    @jeanetterabotapi1562 2 года назад +1

    Thank you so much sir🙏

  • @youngarrogant6172
    @youngarrogant6172 Год назад

    1-3x^2
    0-6x
    =-6x😁!!! without the long steps.

  • @khayamofokeng1096
    @khayamofokeng1096 2 года назад +1

    I found my derivative to be - 6x Sir... Is it correct?

  • @phophinemalili4001
    @phophinemalili4001 2 года назад +2

    Can you please do f(x) =- 2/x
    And f(x) =1/x

  • @flexace768
    @flexace768 2 года назад +2

    -6X 📍

  • @maryannem861
    @maryannem861 4 месяца назад +1

    Where did the 3x go

    • @maryannem861
      @maryannem861 4 месяца назад

      20:54

    • @Lesego.Makhura
      @Lesego.Makhura 4 месяца назад

      @@maryannem861it was multiplied by 0 therefore it became 0

  • @tshegofatsosekgobela4673
    @tshegofatsosekgobela4673 3 месяца назад

    guys, I keep getting 6x. How are people getting -6x?

  • @brunofernandes9347
    @brunofernandes9347 2 года назад +4

    My answer isn't hlanganing 😾😿

  • @rorisangrampheteng4928
    @rorisangrampheteng4928 2 года назад +1

    -6x thanks sir ❤️

  • @mahlogonolomabasa6745
    @mahlogonolomabasa6745 2 года назад +1

    Hello sir i have been part of the team since last year,this year i am doing my first year at Uni so i am interested in starting my own channel which i just did so i wanted to ask:
    1.how do you edit the video in such a way that it shows what you are about to teach and your picture?
    2.What are you using to end up writing on a screen full of markers like way you taught?
    3.how do you insert your face at the bottom left corner when you're speaking?
    I know i am asking too much but i would also like my channel to grow please respond.

  • @reallynotkay6997
    @reallynotkay6997 2 года назад +1

    hey sir, my answer is wrong and i'm not quite sure where i went wrong 🤔

    • @MlungisiNkosi
      @MlungisiNkosi  2 года назад

      Perhaps watch again and see what I’ve done

    • @reallynotkay6997
      @reallynotkay6997 2 года назад

      @@MlungisiNkosi sir i got the one you gave us to try on our own wrong

  • @MinenhleNikwe
    @MinenhleNikwe 4 месяца назад +1

    The 2nd example is confusing to me 😭

  • @tselamashinini1450
    @tselamashinini1450 2 года назад +1

    The answer is -6x

  • @rachealnkosi8567
    @rachealnkosi8567 2 года назад +1

    Good day everyone got X=-6x

  • @maballanoiseent.1250
    @maballanoiseent.1250 2 года назад +2

    F(x)=-6

  • @weightlossmotivation5103
    @weightlossmotivation5103 2 года назад +1

    My answer is -3x I don't know what I did wrong

  • @ntsitselelemirriam1116
    @ntsitselelemirriam1116 2 года назад +1

    My answer is -6

  • @blue_spxrkls
    @blue_spxrkls 2 года назад +1

    i got a word of mouth from tiktok about your channel...im hoping itll help me out just like it has helped the rest with their grades wishing everyone goodluck with their prelims

  • @xolanfana5373
    @xolanfana5373 11 месяцев назад +1

    F'(x) = -6x

  • @tastycookingwithpersonalit3454

    it is _6x

  • @lareinejen8815
    @lareinejen8815 2 года назад +1

    f'(x) = -6x

  • @tendaivenus903
    @tendaivenus903 Год назад +1

    f¹(x)=-6x

  • @EDWINTSHEPISO-bf5cq
    @EDWINTSHEPISO-bf5cq 5 месяцев назад

    If you don't know how to derive this year😂😮😂😂

  • @billionsubscribers1
    @billionsubscribers1 2 года назад +1

    My answer is: f'(x)= -6x