Parametric curve arc length | Applications of definite integrals | AP Calculus BC | Khan Academy

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  • Опубліковано 21 жов 2024

КОМЕНТАРІ • 17

  • @Hobbit183
    @Hobbit183 7 років тому +28

    Sal your my hero. Ive never had any freinds to study with but when i watch your videos it becomes more fun to study because im not feeling so alone. Now many years after high school im finaly prepared to go for civil engineering.
    Thank you

    • @edivaldobravo1443
      @edivaldobravo1443 7 років тому +7

      good luck out there buddy. i'm in second year of civil engineering . this man has been saving me hahahaha

    • @Anteater23
      @Anteater23 6 років тому +3

      Same. I've absolutely no friends but he's my math friend.

  • @ShubhamSingh-sp5nb
    @ShubhamSingh-sp5nb 2 роки тому +2

    Thanks man you are an angel. Finally someone who works and explains concepts so easily

  • @changyuan5404
    @changyuan5404 6 років тому +18

    The man who does everything for everyone but never. Charges anything

    • @christianalvarez5409
      @christianalvarez5409 5 років тому +2

      The man is awesome for sure, but he is absolutely making money off his tutorials.

    • @HDitzzDH
      @HDitzzDH 3 роки тому +1

      He is definitely making a lot of money through Khan Academy, but the difference is that he doesn't require you to pay in order to access amazing, educational content like this, you can have it all for free if you want, or you could donate to him if you want.

    • @changyuan5404
      @changyuan5404 3 роки тому

      @@HDitzzDH yes I donated 20dollars to khan.

  • @ddr5ecc768
    @ddr5ecc768 6 місяців тому

    I did not find this prove in my textbook! Thank you for explanation.

  • @giack6235
    @giack6235 10 місяців тому

    Hello, thank you for the video. I wanted ask: at min 5:00, how you can just say: we "factor out" dt? First module would be needed (i.e. | dt | ), but above all we are pretending dt is a number or a variable which can be "squared" or "taken the square root" but it's not actually, it's an abstraction of infinitesimal small change!

    • @masny8746
      @masny8746 9 місяців тому

      It can be thought of as an abstraction, but it is also literally what the name suggest - a Difference in T (hence DT). It is infinitely small, but still a difference of values, which can be squared and factored out.

  • @dangkhanhlinh476
    @dangkhanhlinh476 5 років тому

    Hi
    Khan Academy, what is " Return parameter of curve at the point"? Can you analyze for me
    what does it mean? Where can I get it from? I am studying the problem of dividing the curve

  • @lafontaineadam
    @lafontaineadam 5 років тому +2

    MY BRAINNNNN

  • @AmadaraJourney
    @AmadaraJourney 7 років тому

    1

  • @urielbravo5949
    @urielbravo5949 7 років тому

    First

  • @rapsnippets4415
    @rapsnippets4415 7 років тому +1

    1st like

  • @nathantrieu
    @nathantrieu 7 років тому

    I'm fifth