calculus 1 tutorial: how to use the product rule, quotient rule, and chain rule

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  • Опубликовано: 12 сен 2024
  • Learn the derivative product rule, quotient rule, and chain rule for your Calculus 1 class. This tutorial is for calculus beginners to learn the differentiation techniques easily. We will also do 4 examples, differentiate x^3*sin(x), sin(x)/(1+cos(x)), (sec(x))^3, and sec(x^3).
    Check out my 100-derivative video for more differentiation practice. • 100 calculus derivativ...
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Комментарии • 78

  • @DynestiGTI
    @DynestiGTI 6 лет назад +44

    It's sad how much I will forget after the 6 week holiday so this video is great for remembering.

    • @blackpenredpen
      @blackpenredpen  6 лет назад

      DynestiGTI glad it helps : )

    • @gamingmusicandjokesandabit1240
      @gamingmusicandjokesandabit1240 2 года назад +2

      @@blackpenredpen Meanwhile I'm watching this video on the 6th week of my 7 week holiday before this will be covered in some months in my Maths class.

  • @donttell3185
    @donttell3185 11 месяцев назад +5

    The way you teach goes so well with the way I learn, thank you :D.

  • @hopp2184
    @hopp2184 6 лет назад +10

    My memory device for quotient rule:
    Low-d(high) High-d(low) square the bottom and away you go

    • @tanelkagan
      @tanelkagan 3 года назад +1

      Perhaps it ought to be: "Low-d(high) MINUS High-d(low), square the bottom and away you go"?

  • @sinarzaito1106
    @sinarzaito1106 6 лет назад +8

    Best calculus channel ever!

  • @sugarfrosted2005
    @sugarfrosted2005 6 лет назад +85

    My mnemonic for the quotient rule is "don't use the quotient rule,you'll make a sign error"

    • @VeritasEtAequitas
      @VeritasEtAequitas 4 года назад +1

      If you make sign errors that often, try practicing elementary school addition and subtraction...

    • @curtiswilliams644
      @curtiswilliams644 3 года назад +33

      @@VeritasEtAequitas chilllll

    • @FreeBillCosby
      @FreeBillCosby Год назад +15

      @@VeritasEtAequitas try practicing in social situations so you understand a joke…

    • @kn_halo
      @kn_halo 4 месяца назад +1

      @@VeritasEtAequitasit’s not that’s it’s hard, it’s just that the sign gets lost amidst the chaos

    • @y2ksteppa
      @y2ksteppa 4 месяца назад

      @@VeritasEtAequitas ohh boy...internet ,math war

  • @benjaminparra4672
    @benjaminparra4672 2 года назад +2

    In the quotient rule you have to reorder the places of your f and g functions (dont put g f, is better f g), if you do that you will can multiply in cross and at the end you have just to put the results down (incuded the negative sign for the second expresion), without cross again.

  • @JustWilson
    @JustWilson 2 года назад +1

    Really helpful video, thank you so much! Been struggling with this for a while, I recommend this to anyone who’s been a bit confused by it. YT please get this in the algorithm!

  • @SuperYoonHo
    @SuperYoonHo 2 года назад +3

    Awesome!!!
    what i meant is
    your calculs videos help a lot...
    like this one

  • @farhanomane5373
    @farhanomane5373 25 дней назад

    I love the cooking vs ingredients part of the video

  • @price-tjk6604
    @price-tjk6604 2 месяца назад

    That what I needed great person explained really nicely and well

  • @not_vinkami
    @not_vinkami 5 лет назад +3

    What are these rules? I can't really remember them. I only know Prada Lu, Kochen Lu and Chen Lu!

  • @joshuapr999
    @joshuapr999 2 года назад +4

    If anyone is still here, an easy rhyme for Quotient rule that helped me remember it went as follows:
    “Low d high minus high d low, square the bottom and away we go!”
    Someone was just being silly in class one day and spit that out, but none of us forgot how the quotient rule worked again!
    So the low d high part just looks like the gf’ he did, same with high d low being fg’.

    • @kitkat8802
      @kitkat8802 2 года назад

      stop this is awesome tyty i will be using this

    • @superchick00
      @superchick00 8 месяцев назад

      its literally official on the mathsisfun website

  • @adefela
    @adefela 2 года назад +1

    Thank you sir!

  • @manycalled6748
    @manycalled6748 4 года назад +1

    Thank you sensei

  • @15schaa
    @15schaa 6 лет назад +3

    6:45 caught me off guard, man!

  • @hayambangkok
    @hayambangkok 3 года назад

    I loved this video. You helped me remember the rules. 🙏🙏🙏

  • @ronaldvincentiizerrudo3990
    @ronaldvincentiizerrudo3990 5 лет назад +1

    Really helpful!😁

  • @mattdodgers9533
    @mattdodgers9533 Год назад

    Excellent lesson

  • @doublej1076
    @doublej1076 6 лет назад +2

    And to mix your last two examples, the chain rule can itself be chained, right? If the equation were something like
    d/dx (sec^3(x^2))
    It would end up being
    3sec^2(x^2) * sec(x^2) tan(x^2) * 2x
    = 6x sec^3(x^2) tan(x^2)
    right?

  • @EMorgensztern
    @EMorgensztern 6 лет назад +3

    What is the set of definition of y=x^(1/x) please ?
    #yay from FRANCE

    • @teekayanirudh
      @teekayanirudh 6 лет назад

      If you want only the continuous and differentiable portion (which is what is usually desired), domain of definition is (0, inf)

    • @EMorgensztern
      @EMorgensztern 6 лет назад

      And if i want the hole domain ?

    • @89roddy
      @89roddy 6 лет назад +2

      For x>0 we get real numbers, so R⁺ is part oft he domain.
      Since x is in the denominator of the exponent, 0 is not part of the domain.
      If the base is negative, there will only be a real result, if the exponent is a fraction with an odd denominator. For x

    • @EMorgensztern
      @EMorgensztern 6 лет назад

      Thank you very much : your answer is so clever !!

  • @colleen9493
    @colleen9493 5 лет назад

    That box method made me laugh so hard

  • @SuperYoonHo
    @SuperYoonHo 2 года назад +1

    like this one

  • @mathsymath7331
    @mathsymath7331 3 года назад

    thanks again

  • @holyshit922
    @holyshit922 6 лет назад +1

    Here is my advice , when you forget these rules go back to the limits (limit of difference quotient as difference of arguments goes to zero)

  • @muslimahtutoress266
    @muslimahtutoress266 3 года назад

    Really good video

  • @firomsawakjira1749
    @firomsawakjira1749 Год назад

    thankyou

  • @majkgmajkg2613
    @majkgmajkg2613 6 лет назад

    when you make a second arrow in product rule, you have a plus :)

  • @dinogplayer3640
    @dinogplayer3640 6 лет назад

    Can someone tell me the name of the video were the “Chen Lu” guy appears?

  • @tasninnewaz6790
    @tasninnewaz6790 6 лет назад

    blackpenredpen, YAY !

  • @nikolaristic8586
    @nikolaristic8586 Год назад

    Im confused 😕, how do i know when to use the power rule and when the chain rule? Why isn't the d/dx(sec^3(x))=3sec^2(x) ?

    • @adamcole3722
      @adamcole3722 Год назад

      You only move the power up front if the power is on the X.

  • @AJYM117
    @AJYM117 5 месяцев назад

    bro knows cooking 5 years ago my teacher fr props

  • @Chai_yeah
    @Chai_yeah 6 лет назад +1

    I hope your high school friends get to know about your channel !!

    • @blackpenredpen
      @blackpenredpen  6 лет назад

      Chaitanya Paranjape
      They were actually my students lol

    • @Chai_yeah
      @Chai_yeah 6 лет назад +1

      blackpenredpen Oh my bad (Tbh if you were my teacher I wud consider you as a friend) ! But I still hope the same

  • @oguzcodes
    @oguzcodes 6 лет назад +1

    what is the hardest subject in mathematics

    • @notspaso6644
      @notspaso6644 6 лет назад

      Well the riemann hypotesis derives obviously from the riemann zeta function which is studied mainly in analytic number theory, also other topics in number theory are not very easy so you could consider it a "hard subject" in maths, but i have to agree, the difficulty is subjective, for instance if you don't like a certain branch of maths you can find it particularly hard (say topology is not very loved, so that could be a good example)

    • @sinarzaito1106
      @sinarzaito1106 6 лет назад

      String theory math

    • @sugarfrosted2005
      @sugarfrosted2005 6 лет назад

      Sinar Zaito ahahaha.

    • @oguzcodes
      @oguzcodes 6 лет назад

      İ cant find a great telling about reimann hypothesis in turkish its hard to understand in english

  • @thatomofolo452
    @thatomofolo452 11 месяцев назад

    Great 👍👍😄

  • @flowerwithamachinegun2692
    @flowerwithamachinegun2692 6 лет назад +3

    Oh, we are cooking now? Then you should change your name into blackpAnredpAn :)))

  • @xoxo-yp1fc
    @xoxo-yp1fc 5 лет назад +1

    Th at was good

  • @WCBongZ
    @WCBongZ 3 года назад

    You are doing god's work :D ♥

  • @shravansrinivasan4982
    @shravansrinivasan4982 5 лет назад +1

    Smart

  • @arbeeyamelo291
    @arbeeyamelo291 4 года назад

    USE THE CHEN LU HAHAHAHAHAHA 😂

  • @aaronnielsen2705
    @aaronnielsen2705 5 месяцев назад

    W

  • @VaradMahashabde
    @VaradMahashabde 6 лет назад

    Looks like someone refilled the pens

  • @soumyachandrakar9100
    @soumyachandrakar9100 6 лет назад

    #yay

  • @Junior-de8cz
    @Junior-de8cz Год назад

    Let him cook

  • @samokoribanic9184
    @samokoribanic9184 6 лет назад

    #YAY

  • @debrajbanerjee9276
    @debrajbanerjee9276 6 лет назад

    3 men and 1 woman highlighted...
    Who is Ivette ?