Q313, Centroid formulas of a region bounded by two curves

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  • Опубліковано 17 гру 2024

КОМЕНТАРІ • 84

  • @TheBlueboyRuhan
    @TheBlueboyRuhan 5 років тому +21

    Wow, It's like you know what topics I need to revise! Your upload schedule is perfect!

    • @blackpenredpen
      @blackpenredpen  5 років тому +6

      Rahmed hahaha : ))))

    • @carrapaz3645
      @carrapaz3645 5 років тому +2

      @@blackpenredpen please pick up my challenge on pathreon 😭

  • @Morgow1
    @Morgow1 5 років тому +9

    I just finished high school math. I feel smarter from this video already.

    • @clap_lmao
      @clap_lmao 4 роки тому +3

      you did centroids in highschool tf im doing them in statics engineering rn xD

    • @JJCUBER
      @JJCUBER 4 роки тому +2

      @@clap_lmao I’m in high school and I had to do them for Calc II at the beginning of the school-year. The only difference is we were taught it with including the density constant in the (now) mass and moment formulas, even though they cancel out. I presume it was in order to understand if/when we actually need the proper mass/moment for other formulas?

  • @poemyathaythar7172
    @poemyathaythar7172 Рік тому

    I would like to say this man is single handed lay keeping my grades at an A

  • @AmmarEmadDerby
    @AmmarEmadDerby 6 місяців тому

    I was stuck in a calculus problem for a day until I met this explanation, thx bro

  • @Sofia-kh1xy
    @Sofia-kh1xy 4 роки тому +1

    so glad i found this channel! you explain things so nicely it's very easy to understand

  • @themaxmah4552
    @themaxmah4552 3 роки тому +1

    Thank you so much! Your videos are so helpful. You are a great teacher and the examples are short and very direct

  • @derekwilliams9671
    @derekwilliams9671 Рік тому

    You're great at explaining, thank you!

  • @Gaark
    @Gaark 5 років тому +2

    AHAAH!! I can show this to the civil engineering students and prove they need to do calculus! They were hassling because it was only the electricals that had to do higher math, ahaha I'm so happy! :D

  • @mwilamwamba1787
    @mwilamwamba1787 Рік тому

    Perfect for last minute revision

  • @kc3673
    @kc3673 10 місяців тому

    Ahhh mathematics is so fabulous😮

  • @pasindudilmin3357
    @pasindudilmin3357 2 роки тому

    This is really helpful 🥺❤️

  • @AlphaZero4000
    @AlphaZero4000 5 років тому

    I really like these centroid videos. You should make more!

  • @geethaudupa8930
    @geethaudupa8930 5 років тому +4

    Nice to learn new stuff thank you 1/(1-x)

  • @egillandersson1780
    @egillandersson1780 5 років тому

    Wow ! Amazing video. I didn't know this.

  • @lenawalid
    @lenawalid Рік тому

    You make me believe in UA-cam

  • @MaySaysSo
    @MaySaysSo 5 років тому

    THANK YOU SO MUCH MY FINAL EXAM IS TOMORROW

  • @rezamiau
    @rezamiau 5 років тому +1

    good tutor.

  • @perveilov
    @perveilov 5 років тому +1

    Have you ever use statistics to check on the relativity of certain formula?

  • @alexander17293
    @alexander17293 5 років тому +1

    You are awesome

  • @toxikologi4976
    @toxikologi4976 5 років тому +1

    Hi, I love your videos and channel! Would you consider covering Cauchy principal value? I find it really interesting but I don't understand it 😂

  • @vonlouieapalacio4455
    @vonlouieapalacio4455 3 роки тому

    THANKS 😊

  • @JamalAhmadMalik
    @JamalAhmadMalik 5 років тому

    #Yay. The question I recently had in mind was a bit related to probability... What happens to the probability of getting a number divisible by 5, as you move from 1-digit numbers to 2-digit numbers, to 3 to n-digit numbers?
    And as n approaches infinity?

  • @oneinabillion654
    @oneinabillion654 5 років тому +1

    I just finished my A levels and Im learning calculus myself before I go into uni. I'm thinking what if I connect infinitely many centroids of each rectangle and then find the median along the x and y axis since mass is assumed to be distributed equally. Would that work?

  • @blobfishrus3547
    @blobfishrus3547 8 місяців тому

    beautiful

  • @unaoneill9079
    @unaoneill9079 3 роки тому

    Very helpful

  • @efeguleroglu
    @efeguleroglu 5 років тому

    Thank you!

  • @dovimanking871
    @dovimanking871 5 років тому

    Thank you

  • @AnonimityAssured
    @AnonimityAssured 5 років тому +13

    How can I concentrate on this when I'm thinking of "e as an infinite sum"?

    • @kylercrank160
      @kylercrank160 5 років тому +1

      truee lol

    • @willnewman9783
      @willnewman9783 5 років тому

      What do you mean?

    • @AnonimityAssured
      @AnonimityAssured 5 років тому

      @@willnewman9783 The video "e as an infinite sum (using binomial theorem)" appeared among my notifications but was then withdrawn for some reason. It will probably appear again later. Maybe there was some technical fault or a rare mistake in the maths.

    • @danielgarai-ebner1334
      @danielgarai-ebner1334 5 років тому

      I was so confused because I watched it earlier and then it suddenly wasn't there, at least I'm not going crazy...

    • @willnewman9783
      @willnewman9783 5 років тому +2

      @@AnonimityAssured Oh okay, I thought you meant something like that. Yeah, I saw that video yesterday. I noticed there was a part in the video that, while mostly correct, needed a bit more justification than what he gave. I am guessing he is refilming it adding further explanation

  • @3ia18_prasetyaharkrisnowo7
    @3ia18_prasetyaharkrisnowo7 5 років тому +1

    I was about to wake up then this video appears

  • @alimghazzawi3700
    @alimghazzawi3700 5 років тому

    I just thought of an interesting question or at least I think it is. Is the sum of sequence of x^(1/x) when x approach infinity ♾ starting from one is it diverges or converges.
    and if it is converges can you tell us the value of it.
    I thought of one method that thought us which is convert it to an integral and worked out and see if it converges then the sequence is conv too. But this integral is not elementary so.
    but at the end I think it is diverges because if we graph it. The area under the graph is ♾ .

    • @alimghazzawi3700
      @alimghazzawi3700 5 років тому

      Porhaps May be you show us a ramanojan solution

    • @sensei9767
      @sensei9767 5 років тому

      You can just do the test for divergence, x^(1/x) doesn't approach 0.

    • @alimghazzawi3700
      @alimghazzawi3700 5 років тому

      Sensei. Its a sequence if we use the integral method that he showed us you can’t worked out because how can you integrate x^(1/x) at the first place

    • @sensei9767
      @sensei9767 5 років тому

      @@alimghazzawi3700 x^(1/x) approaches 1 for x -> infinity. 1+1+1+... can't possibly converge to a finite value, you don't need any integral to prove that.

    • @alimghazzawi3700
      @alimghazzawi3700 5 років тому

      Sensei I know i wrote that at the end of
      the first comment . I am interested on if there is a ramanojan solution or a solution that is like -1/12

  • @dt3653
    @dt3653 5 років тому

    Collab with Eddie woo would be interesting.

  • @13favio13
    @13favio13 5 років тому

    Great, some idea how to prove and find the intersection of f (x) = e ^ x and g (x) = tg (x). ? ...

  • @srpenguinbr
    @srpenguinbr 5 років тому

    for y bar, can we use the inverse function?

  • @alexdemoura9972
    @alexdemoura9972 5 років тому +1

    Sorry, but what happened to the video "e as an infinite sum (using binomial theorem)"?

  • @vyas2004
    @vyas2004 5 років тому +3

    I am in 9th :( , but still love your videos :)

  • @Pritzelita
    @Pritzelita 5 років тому

    That looks sorta similar to the mean value theorem I learned last semester

  • @carrapaz3645
    @carrapaz3645 5 років тому

    Maaaan pick up my challenge on pathreon!

  • @muhammadqasim7056
    @muhammadqasim7056 5 років тому

    Cycloids nest please!and the derivation of 3pir^2

  • @g4br1p3r3z
    @g4br1p3r3z 5 років тому

    Can I use integral double? (sorry for my English)

  • @andresfelipepinedavargas36
    @andresfelipepinedavargas36 5 років тому

    Just before my static test !! coincidence? I do not think so

  • @ritampal8222
    @ritampal8222 5 років тому

    I really admire your vids a lott.!! you explain beautifully. but i hv a doubt, can you show how to do this by horizontal strip of area? im facing trouble in it..

  • @jikaikas
    @jikaikas 5 років тому

    Berry cool

  • @stonedera431
    @stonedera431 5 років тому

    I don't understand why I sing BPRP in the same tune as PPAP🙄

  • @solidwaterslayer
    @solidwaterslayer 5 років тому

    tldr
    but do i do integral f(x) - integral g(x)

  • @dimacherepovskyi8600
    @dimacherepovskyi8600 5 років тому +2

    Why are you dividing by the area? I don't understand.

    • @newtonnewtonnewton1587
      @newtonnewtonnewton1587 5 років тому

      Its a rule

    • @efeguleroglu
      @efeguleroglu 5 років тому

      centroid= sum(area*distance)/sum(area)

    • @alicwz5515
      @alicwz5515 5 років тому

      It's a weighted average of all the points inside the funtions, based on their areas.

    • @rajita4920
      @rajita4920 4 роки тому

      Actually we have that area multiplied to the object's surface density . But since we have surface density term taken out common on the numerator as well , it gets cancelled . He mentioned it in the beginning of the video .

  • @marquez2390
    @marquez2390 5 років тому

    Do video on gaussian integral please

    • @Gold161803
      @Gold161803 5 років тому

      Dr Peyam has done twelve of them recently!

  • @ericsenatore8385
    @ericsenatore8385 5 років тому +1

    Uploaded 30 minutes after my statics final...

  • @Patapom3
    @Patapom3 5 років тому +2

    Nice but you should have explained what is a moment first... I'm still not sure what it is. :/

    • @srpenguinbr
      @srpenguinbr 5 років тому

      moment of inertia is an analog for mass in rotational motion. The higher the moment, the lower the acceleration of an object around an axis. If you play around with the formula for kinetic energy, you can find out how to calculate it.

  • @ClumpypooCP
    @ClumpypooCP 5 років тому +3

    too late... just had my calc 2 final exam last week lol

    • @blackpenredpen
      @blackpenredpen  5 років тому +1

      Clumpy. Are you on quarter?

    • @ClumpypooCP
      @ClumpypooCP 5 років тому +2

      blackpenredpen I go to UBC in Vancouver, basically the normal school year is two semesters, September-April with April being exam period.

    • @blackpenredpen
      @blackpenredpen  5 років тому +1

      Clumpy
      Oooh I see. No wonder. I thought you would be on a quarter system

    • @ClumpypooCP
      @ClumpypooCP 5 років тому +1

      blackpenredpen Yeah, its quite crazy to me how we have a 4 month summer break compared to the 2 month break we get in high school. I have a Linear Algebra exam next week and then im done!

    • @blackpenredpen
      @blackpenredpen  5 років тому +3

      Clumpy 4 months break!!!!!!!! Now I am jealous!! Oh, and you can check out dr. Peyams channel for linear algebra true false problems!!

  • @amankashyap5767
    @amankashyap5767 5 років тому

    what was the video about, you deleted.

  • @mtrichie111
    @mtrichie111 5 років тому

    Um Hi

  • @valeriobertoncello1809
    @valeriobertoncello1809 5 років тому

    Hi

  • @suirahplanogemo3407
    @suirahplanogemo3407 5 років тому

    All of his videos are clearly clickbait. See, he uses black MARKERS and red MARKERS, not blackpenredpen

  • @sylvainm-v7919
    @sylvainm-v7919 5 років тому

    Hi

  • @Mryeo5354
    @Mryeo5354 4 роки тому

    Hello