Direct Comparison Test - Calculus 2

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  • Опубликовано: 6 ноя 2024

Комментарии • 249

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Год назад +16

    Next Video: ruclips.net/video/LBxYQ0TJxYM/видео.html
    Final Exams and Video Playlists: www.video-tutor.net/

    • @Idurangaa
      @Idurangaa Год назад

      Isn't 1/n convergent

    • @audiomac
      @audiomac 11 месяцев назад

      @@Idurangaa 1/n is convergent, but its series is not. Look up p-series to look up more on the topic.

    • @MukyalaDoreen
      @MukyalaDoreen 11 месяцев назад

  • @joshuaway
    @joshuaway 7 месяцев назад +60

    My man is carrying the entirety of the next generation's higher education on his shoulders

  • @ParthMaitreymarvel
    @ParthMaitreymarvel 6 лет назад +463

    The most underrated channel

    • @tabtibelkacem2824
      @tabtibelkacem2824 6 лет назад +3

      ikr

    • @mryup6100
      @mryup6100 4 года назад +2

      @Txawjntse Vang wuzzy

    • @Purpose_Porpoise
      @Purpose_Porpoise 4 года назад +2

      @Txawjntse Vang lol I was not expecting that reply so I actually laughed.

    • @janedoes5903
      @janedoes5903 4 года назад +11

      Lmao he has over 2 million subscribers. Most don't take calculus and many avoid it at all costs.

    • @elder7241
      @elder7241 2 года назад +2

      not anymore lmao

  • @rmdir
    @rmdir 2 года назад +133

    An analogy.
    You are driving home in your car with a friend. The car is low on gas, the low gas light comes on.
    Your friend lives a few miles before your house, on the way, less distance.
    If you make it home (converge) of course so did your friend.
    But if your friend makes it home, that doesn't mean you won't run out of gas on the way to your house (diverge).
    Same situation here.

    • @AM-fh5rx
      @AM-fh5rx Год назад +10

      what a nice way to explain it thanks man

    • @ziaddd6919
      @ziaddd6919 Год назад +8

      thanks for this, my professor was so confusing when he explained it

    • @MeinCouch123
      @MeinCouch123 11 месяцев назад +4

      Very very nice way to put it 👍

    • @Silenwrld
      @Silenwrld 10 месяцев назад +2

      That's deep man😊

    • @Silenwrld
      @Silenwrld 10 месяцев назад +2

      10:34

  • @aunpaidintern7035
    @aunpaidintern7035 5 лет назад +473

    I cannot thank you enough! I'm a full time college student living out on his own in an apartment so I work nights from 10PM-6AM five times a week and sometimes miss out on info during lectures. This section has been brutal to me.

  • @Oscar-gx2yf
    @Oscar-gx2yf 5 лет назад +139

    Do you realize what a huge help you are to so many people!? You deserve more attention! Thanks for all the videos you make you are my favorite youtube instructor of all time hands down!

  • @juanls4643
    @juanls4643 6 лет назад +126

    you and patrickjmt are the people i pray to thank you everynight

    • @bicboi46
      @bicboi46 6 лет назад +25

      Honestly though man. The internet is a beautiful thing, i honestly feel bad for people that struggled in math before the internet was a thing.

    • @umeramjad8692
      @umeramjad8692 4 года назад

      Sameee ☺️☺️☺️

    • @roseayoro9158
      @roseayoro9158 3 года назад

      @@bicboi46 its just something dope doing math

  • @claireeckhardt4472
    @claireeckhardt4472 Год назад +20

    Hi! Just wanted to let you know that your channel has been extremely helpful recently!! My calculus teacher passed away in January, and she was one of the best teachers I’ve ever had. I know she would have wanted me to continue working hard in her class, so I’m doing the best I can with your videos and a new teacher. Thanks for all you do!!!

    • @brokescholar
      @brokescholar Год назад +3

      Hey, good luck and don’t give up! RIP to your awesome calc teacher

  • @darwinorsler3881
    @darwinorsler3881 Год назад +3

    You are just awesome. Consistently through the past year, whenever I've struggled to understand a concept or technique, your videos make it click.

  • @terrancepage9163
    @terrancepage9163 2 года назад +6

    that graph visual really helped me understand things so much clearer! thank you!!!

  • @RamytRamyt
    @RamytRamyt 6 лет назад +7

    I can't believe I only now found your videos. They are SO helpful, and make these problems so much easier to understand. Thank you!!!!

  • @michellemathew_ximb6286
    @michellemathew_ximb6286 6 лет назад +15

    you're a life saver, thank you so much 😭❤

  • @LongRangeBacon
    @LongRangeBacon 5 лет назад +3

    excellent video. I feel twice as ready for my exam tomorrow.

  • @helpontheway7856
    @helpontheway7856 6 лет назад +6

    Thank you for doing these!
    If you can, please do one on Taylor and Maclaurin series & Power series.
    Exam Monday and you’ve helped me ace everything

  • @pfeliciano4062
    @pfeliciano4062 5 лет назад +5

    The problem at 11:50ish is true guys because remember we have been given a restriction if n is greater than or equal to 3. So if you were to plug in 3 you can actually see that 1/n is smaller.
    Also keep in mind that you need to simplify for the second to last problem n/n^2 becomes 1/n

  • @onur7192
    @onur7192 6 лет назад +5

    thanks my teacher you're a good teacheer

  • @TMAJ0R
    @TMAJ0R Год назад +1

    Remember if An=< Bn it will converge unless An goes to negative infinity

  • @safaalqaysi8612
    @safaalqaysi8612 5 лет назад +42

    I get so sad whenever he says "This is the last example for this video''

  • @elguis201109
    @elguis201109 5 лет назад +8

    I can always count on this channel for the 2am next day exam cram

  • @el_jvy4
    @el_jvy4 9 месяцев назад

    honestly my best teacher on youtube

  • @nvn7291
    @nvn7291 5 дней назад

    These vids always help me better understand concepts I don't always understand right away in class. Can you do more examples with trig though? I always feel so confident breezing through the first questions in my textbook but once I get to the problems with lots of trig it's an uphill battle.

  • @annpham6455
    @annpham6455 5 лет назад +2

    u r a math god, thank u for humbly serenading us w ur godtier wisdom

  • @zekebranham9997
    @zekebranham9997 3 года назад +1

    Amazing explaination

  • @janedoes5903
    @janedoes5903 4 года назад +2

    I made it to calc 2 and I'm so happy.

  • @InayatKhan-xx8in
    @InayatKhan-xx8in 5 лет назад +1

    Most concept full channel

  • @fatmacdacat
    @fatmacdacat 3 года назад +3

    OCT...I hands down, absolutely, without a doubt, attribute every passing grade in my math and science classes to you! Thank you OCT! You down with OCT yeah you know me!

  • @aevaristus2410
    @aevaristus2410 3 года назад

    The savior of my calc grade

  • @slowpr0
    @slowpr0 6 лет назад +6

    I don't even have to go to class, I just watch your videos before my quizzes. Good stuff man

  • @maktub_txt
    @maktub_txt 4 года назад +2

    I have my calculus 2 exam tomorrow and i literally cried because i couldn't understand these.Watching these 9 hours before the exam and man i just wanna say thankyou Allah apki dunya aur akhrat achi karey

    • @Giblet12
      @Giblet12 4 года назад +1

      Haha same boat here. Exam is in 21 hours for me

    • @maktub_txt
      @maktub_txt 4 года назад +2

      @@Giblet12 *cries in calculus*
      Best of luck ✨

    • @Giblet12
      @Giblet12 4 года назад

      @@maktub_txt Thanks my man

  • @camileclere8925
    @camileclere8925 3 года назад

    you're so good at teaching

  • @egetahhan298
    @egetahhan298 5 лет назад +1

    You saved my life mann great presentation

  • @rambhayadav9854
    @rambhayadav9854 3 года назад +1

    Thanks a lot sir 👍. I got cleared the concept of direct comparison test . I wasn't knowing it so clearly .

  • @juanjo984184333
    @juanjo984184333 3 года назад

    Thanks is most useful your video than others.

  • @celineguler
    @celineguler Год назад +2

    8:56 why inconclusive? we didn't check a smaller series but by just a bigger series is divergent we say it's inconclusive?

    • @cortiz8726
      @cortiz8726 Год назад

      what else is there to check? You use limit comparison test if you get inconclusive

  • @nug700
    @nug700 4 месяца назад

    I always watch this guys videos before the lectures by my professors... always.

  • @hayley863
    @hayley863 5 лет назад +1

    As an engineering student at Purdue, may you be blessed in all facets of life. We love you.

    • @rockyk6805
      @rockyk6805 5 лет назад

      How is Purdue for engineering?
      I was thinking of transferring

    • @hayley863
      @hayley863 5 лет назад

      @@rockyk6805 As far as rankings go, it's 7th in the US. Classes are pretty rigorous, but there are a lot of supplemental resources available, and if you do well and get your degree, you can basically count on landing a good job after graduation. Not to mention that it's a leading research university, which opens up a lot of opportunities for undergrad experience. On a more personal level, I do love the school. The people are chill, most of the professors are great (excluding some for the weed-out classes), and it's overall a solid choice.

    • @rockyk6805
      @rockyk6805 5 лет назад

      @@hayley863 Hey thanks for the response. I just might see you there if my grades hold up :)

    • @vipari
      @vipari 7 месяцев назад

      @@hayley863You graduate?

    • @hayley863
      @hayley863 7 месяцев назад +1

      @@vipari I did, but from a different school. I actually ended up transferring to a school in my home state :)

  • @kulsumkader9410
    @kulsumkader9410 3 года назад

    Thanks a lot for saving my calc grades

  • @adabujiki
    @adabujiki 4 года назад +1

    hmm.... thanks dude-- i read the book for weeks but they never tell you how the original function 1/2+3^n became 1/3^n and 1/2+3^n | so thanks for using the big function small function analogy.

  • @learninghome5396
    @learninghome5396 5 лет назад

    The examples are very simple!!!

  • @bettkiprono9855
    @bettkiprono9855 26 дней назад

    What a wonderful lesson. Keep it up.

  • @emftka1
    @emftka1 6 лет назад +12

    It really helps , even though I don’t know english

    • @onurucar1112
      @onurucar1112 4 года назад

      it's another moment of when foreigners say they don't know english but speak way better than the natives.... respect

  • @andrewbarney5245
    @andrewbarney5245 4 года назад +2

    LITERALLY SAVING MY LIFE

  • @davidotieno1363
    @davidotieno1363 2 года назад

    Thank you Dr.

  • @mertovski8793
    @mertovski8793 5 лет назад +1

    god bless you man thank you so much from turkey 🇹🇷🇹🇷

  • @clutchmadness
    @clutchmadness 5 лет назад +10

    @11:44, I don't understand how he arrived at 1/n. Can someone please explain? All in all, it's still a great video :)

    • @mryup6100
      @mryup6100 4 года назад

      because the numerator becomes insignificant compared to the denominatoe?

  • @narayanthapa4361
    @narayanthapa4361 3 года назад

    I love you ❤ you are awesome i had wasted 4hrs trying to understand this you made me understand this in 15 mins.🥺🥺🥺 love you

  • @azxcv83
    @azxcv83 6 лет назад +1

    Thanks man.You are a life saver

  • @Sultan-le8so
    @Sultan-le8so 4 года назад +1

    You are the best, that all what I can say, thank you my legend ❤️

  • @hokagesama758
    @hokagesama758 4 года назад +3

    he's gonna save my semester yehe ; -- ;

  • @JoeyFinianos
    @JoeyFinianos Год назад

    best content ever very usefull thank you for everything

  • @dimnaprado7764
    @dimnaprado7764 4 года назад +1

    These videos are so helpful!! Thank you!

  • @threeoutchange669
    @threeoutchange669 5 лет назад

    Here you are saving me again

  • @hristinamiljkovic1392
    @hristinamiljkovic1392 6 лет назад +2

    I LOVE YOU SO MUCH thank you for all the videos!!!

  • @stephenchanda7580
    @stephenchanda7580 6 лет назад

    Thanks a lot. I'm liking the new colors. It looks great

  • @fathimarishna4075
    @fathimarishna4075 2 года назад

    I follow your all the vedios🌝 🥺🥺 again thank you🥺❤😍😘

  • @lhbkjfymbf
    @lhbkjfymbf 5 лет назад +1

    most loved youtuber fo sho lmao

  • @shyamyadla3515
    @shyamyadla3515 6 лет назад

    Super explanation sir

  • @elliotjeoffatalifo9656
    @elliotjeoffatalifo9656 4 года назад

    You have helped me alot

  • @tatiaa7206
    @tatiaa7206 5 лет назад +25

    when will he do a face reveal. I've been watching his videos for 2 years and I need to know how he looks like.

  • @fourn7wenty
    @fourn7wenty 4 года назад

    I bet you never thought how important your channel would be

  • @otakupenguin8930
    @otakupenguin8930 5 лет назад

    This was very helpful

  • @ahmadabdel9114
    @ahmadabdel9114 5 лет назад

    Thank you very much, I hope you keep going up to diff

  • @YasmineTajeddin
    @YasmineTajeddin Год назад

    Thank you this was really good and helpful!!!!

  • @sukhkaur444
    @sukhkaur444 4 года назад

    Question: "IN THIS VIDEO," if a sub n is inconclusive, do we leave the answer like that? Do we have to solve further to find if a sub n ("an") is divergent t or convergent?

  • @MeRcuRy6699
    @MeRcuRy6699 5 лет назад +1

    Omg thank you very much bro. You helped me

  • @hafsamohamad1597
    @hafsamohamad1597 3 года назад

    Thank you so much

  • @Danidaks
    @Danidaks 7 дней назад

    I have a question about the graph at 2:20, if the sequence itself is converging but it’s converging to a number above 0 then the series will be divergent , then all the graphs he drew should be divergent?

  • @fathimarishna4075
    @fathimarishna4075 2 года назад +1

    More more more more...🙏 thank you😍🥺😘😘

  • @3lii4Car5
    @3lii4Car5 5 лет назад +1

    Thanks God for your existence Doctor 💕

  • @rodneygolpe3614
    @rodneygolpe3614 5 лет назад +1

    In the problem 1/4+ n^1/3 , can't I use 1/n for comparison? 1/n < 1/4+n^1/3. Since 1/n diverges, then 1/4+n^1/3 diverges.
    Correct me if I'm wrong

  • @azariaiscool
    @azariaiscool 6 месяцев назад

    this is my goat right here brother

  • @siddharthrajagopalan2586
    @siddharthrajagopalan2586 4 года назад

    Thank you for making videos.

  • @alafidmunir8525
    @alafidmunir8525 5 лет назад

    In the second last example. the series 1/n is convergent. correct it.
    kind regards!

    • @erikaguevara3002
      @erikaguevara3002 5 лет назад

      nope! diverges since its harmonic after simplifying and if you do the p-test, it diverge since its equal and less than 1.

    • @alafidmunir8525
      @alafidmunir8525 5 лет назад

      @@erikaguevara3002 My bad! I got it.
      Thanks

  • @moazelsawaf2000
    @moazelsawaf2000 5 лет назад

    Thanks a lot sir ❤

  • @razabazal4669
    @razabazal4669 5 лет назад

    this is the only reason i am passing calc 2

  • @melvinjohn5023
    @melvinjohn5023 3 года назад

    Superbb keep making 👍👍👍👍👍👍👍

  • @maxdegreat566
    @maxdegreat566 3 года назад

    in class i was lost, on hawks i was confused on yt it all makes sense lol thanks

  • @aAnNdDyYyGIRL
    @aAnNdDyYyGIRL 2 года назад

    Thank you thank you thank you 😍

  • @koenabennedict6189
    @koenabennedict6189 6 лет назад

    Thank you

  • @Rayan-cz6tf
    @Rayan-cz6tf Год назад

    Thanks dude

  • @davidkim7250
    @davidkim7250 4 года назад

    Isn't (1/3)^xthe P-series? I thought Geometric series is more like AnX^n... I'm confused...

  • @muqadasghafoor3611
    @muqadasghafoor3611 3 года назад

    Amazing video 🙂

  • @angelfabian2202
    @angelfabian2202 Год назад

    so helpful thank you once again !

  • @georgesadler7830
    @georgesadler7830 2 года назад +1

    Professor Organic Chemistry Tutor, thank you for another excellent video/lecture on the Direct Comparison Test in Calculus Two. This topic in Calculus Two can be problematic, however students must know the different tests and how to apply them in different cases. This is an error free video/lecture on RUclips TV with the Organic Chemistry Tutor.

  • @kyokokirigiri166
    @kyokokirigiri166 4 года назад

    I love this thank you

  • @zubairfayaz5736
    @zubairfayaz5736 6 лет назад +2

    You are woderful

  • @aymmenbatool7254
    @aymmenbatool7254 4 года назад +1

    If bigger series diverges we cannot conclude the behavior of smaller series, why is it so?

  • @Idurangaa
    @Idurangaa Год назад

    so helpful

  • @usmankhalil3229
    @usmankhalil3229 6 лет назад

    thanks this lecture solve my problem about comparison test

  • @immadshaikh9640
    @immadshaikh9640 5 лет назад +1

    what do you mean by "insignificant" in this case?

    • @Viper1924
      @Viper1924 5 лет назад +2

      Insignificant meaning that the value barely changes the denominator. For example, if you have a value of infinity such as 100,000,000. The +5 wont change the value much as it is still infinity.

  • @helpontheway7856
    @helpontheway7856 6 лет назад +3

    You can also cross multiply an and bn to check which is bigger/smaller. Hope it helps someone.

    • @凛-r3h
      @凛-r3h 5 лет назад

      why would you do that? isn't it obviously already that 1/(n+1) is smaller than 1/n?

    • @cortiz8726
      @cortiz8726 Год назад

      @@凛-r3hsometimes its not obvious on harder questions

  • @user-ch6xl1zc6k
    @user-ch6xl1zc6k Год назад

    I don't quite understand how it works in the case of a decreasing series. If bn is larger than an, but both are decreasing then how does bn converging tell us that an also does

  • @alexisazuara9649
    @alexisazuara9649 3 года назад

    I would be proud to shake this mans hand

  • @hannanbaig7888
    @hannanbaig7888 5 лет назад +1

    at 11:53 why didnt you consider ln(n) / n (the bigger series) instead of 1 / n (the smaller series)?

    • @pfeliciano4062
      @pfeliciano4062 5 лет назад

      Hannan Baig yeah I was confused, because if you were to plug in any number the bigger one would be 1/n

    • @pfeliciano4062
      @pfeliciano4062 5 лет назад

      Oh I figured it’s because we had a restriction of n is greater than or equal to 3

  • @forrestdangerfield2844
    @forrestdangerfield2844 4 года назад +1

    Thank you again for your help! So damn easy to understand

  • @papuan-black
    @papuan-black 7 дней назад

    Thank you ❤

  • @soner8780
    @soner8780 5 лет назад

    thanks

  • @cening_education
    @cening_education 2 года назад

    thankyou so much...

  • @reidgarrison9629
    @reidgarrison9629 2 года назад

    10:55 why cant we use L'hospital rule when n goes to infinity wouldnt the bid series go to zero ?

  • @YoussefMohamed-bs6yz
    @YoussefMohamed-bs6yz 3 года назад

    shokran yasta