Monotonic Sequences and Bounded Sequences - Calculus 2

Поделиться
HTML-код
  • Опубликовано: 5 сен 2024
  • This calculus 2 video tutorial provides a basic introduction into monotonic sequences and bounded sequences. A monotonic sequence is a sequence that is always increasing or decreasing. You can prove that a sequence is always increasing by showing that the next term is greater than the previous term. This video also discusses bounded sequences. A sequence can be bounded above or have an upper bound it it has a maximum value it can reach. If there is a minimum value in the sequence, then it has a lower bound or it's bounded below. A sequence that is bounded above and bounded below is said to be bounded. A monotonic sequence that is bounded is said to be convergent. This video explains how to determine the convergence and divergence of a sequence by determining if its a monotonic sequence and if its a bounded sequence.
    Improper Integrals:
    • Improper Integrals - C...
    Converging & Diverging Sequences:
    • Converging and Divergi...
    Monotonic & Bounded Sequences:
    • Monotonic Sequences an...
    Absolute Value Theorem - Sequences:
    • Absolute Value Theorem...
    Squeeze Theorem - Sequences:
    • Squeeze Theorem For Se...
    ________________________________
    Geometric Series & Sequences:
    • Geometric Series and G...
    Introduction to Series - Convergence:
    • Convergence and Diverg...
    Divergence Test For Series:
    • Divergence Test For Se...
    Harmonic Series:
    • Harmonic Series
    Telescoping Series:
    • Telescoping Series
    __________________________________
    Integral Test For Divergence:
    • Calculus 2 - Integral ...
    Remainder Estimate - Integral Test:
    • Remainder Estimate For...
    P-Series:
    • P-series
    Direct Comparison Test:
    • Direct Comparison Test...
    Limit Comparison Test:
    • Limit Comparison Test
    ___________________________________
    Calculus Final Exam and Video Playlists:
    www.video-tuto...
    Full-Length Videos and Worksheets:
    / collections

Комментарии • 176

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Год назад +14

    Next Video: ruclips.net/video/kH5Zqg5j-3M/видео.html
    Final Exams and Video Playlists: www.video-tutor.net/

  • @40klegion78
    @40klegion78 Год назад +371

    I just want ot say, of all the people out there this guy will one day be able to claime that he is responsable for a whole generation of college students becoming engineers and passing. Thanks man your a God send

    • @rmdir
      @rmdir Год назад +7

      Truly we are all of us blessed this day.

    • @EsterNandjila
      @EsterNandjila Год назад +1

      You really boosted my knowledge 😊

    • @Daniel-nm6pf
      @Daniel-nm6pf 10 месяцев назад

      huh?! since when@@oytanali1803

    • @nunoskid153
      @nunoskid153 9 месяцев назад +2

      and biologists

    • @Josh-tf9cr
      @Josh-tf9cr 4 месяца назад +1

      Cringe

  • @kameronbriggs235
    @kameronbriggs235 5 лет назад +246

    Im getting so close. Im going to finish every last one of the 226 videos in your calculus playlist.

    • @kameronbriggs235
      @kameronbriggs235 3 года назад +23

      @Alex Lerch oh yeah. i finished all of them + the middle/highschool mathematics all together in like 9 months or something.

    • @noureldeenelqrenawi7564
      @noureldeenelqrenawi7564 3 года назад

      @@kameronbriggs235 ححذججطططط

    • @akshayv2849
      @akshayv2849 3 года назад +6

      Gg bro

    • @suryateja3152
      @suryateja3152 2 года назад +2

      Great

  • @koliteydaniel2316
    @koliteydaniel2316 2 года назад +69

    I think this guy is one of the best tutors in the world. I appreciate your works a lot. Kudos, you doing a great work....

  • @ChefFarisMom3
    @ChefFarisMom3 Год назад +23

    Whenever I see something difficult mathematical problems I know this guy has an ultimate solution to make it easier and simple... this guy have millions trillions of students who are praying for you every second of a day..may God bless you every second of your life Aameen

  • @uzunnajichijioke9084
    @uzunnajichijioke9084 7 месяцев назад +5

    Am Chris, studying Data Sciences in Germany. I must say a very big thank you for simplifying complex mathematical problems. You're a legend. I appreciate you

  • @tjdlamini4062
    @tjdlamini4062 4 года назад +51

    That one guy who covers 3 chapters in one hour🔥🔥🔥🔥🙏🙏👌🌹✨

  • @elvianneymichael2732
    @elvianneymichael2732 4 года назад +47

    /after watching your videos, finally my mindset about calculus was hard had changed. the way you teach is more specific than my lecturer did and i understand this a lot. Thank you so much!!!!!! (sorry for my bad english)

  • @myrthecatteau130
    @myrthecatteau130 5 лет назад +22

    I just wanted to let you know, you saved my life! You're amazing!

  • @elegachi
    @elegachi Год назад +8

    I'm literally from Finland and your videos have been the most helpful in my studies which are all in Finnish. The terms are pretty close anyways, but there isn't a better tutor in Finland either so I'm thankful that I can understand English 🙏🙏

  • @cdiek1995
    @cdiek1995 5 месяцев назад +1

    I had an emergency surgery (appendectomy) mid-semester and missed about a week of classes, and these videos are helping me get caught up! Thanks!

    • @rivall8105
      @rivall8105 5 месяцев назад

      I hope you feel better :)

  • @rennabatucan9609
    @rennabatucan9609 Год назад +5

    Today is year 2023 and this video is timeless. Very helpful, thank you for this.

  • @wokguysrandomstuff5535
    @wokguysrandomstuff5535 4 года назад +7

    YOU ARE JUST TEACHING ME WHAT I WANT!! OMG THANK YOU! you saved my first of career lol, my calculus teacher just give us a ton of pdfs with lots of letters... But you made me understand everything with graphs and so! Ty again!

  • @Chrisymcmb
    @Chrisymcmb 3 года назад +13

    You keep my knowledge increasin'

  • @applejuiceandy4920
    @applejuiceandy4920 9 месяцев назад +1

    Another topic you put to shame my calc 2 teacher at. He puts no effort in teaching and notes are rushed written for someone who is already a master at the topic. Thank you so much

  • @intkayne736
    @intkayne736 3 года назад +6

    The way you teach restores my love for Math😳

  • @physco
    @physco 2 года назад +11

    THANK YOU SO MUCH BUDDY

  • @boisteranto9275
    @boisteranto9275 5 лет назад +26

    your accent is so wholesome, i love it

  • @mayurnunkoo8690
    @mayurnunkoo8690 5 лет назад +20

    Explained better than my book did. Good job!

  • @johng5295
    @johng5295 5 лет назад +10

    Thanks in a million. Where have you been all these years!

  • @OKLAHAMA1442
    @OKLAHAMA1442 3 года назад +5

    Sir your lecture is so evident that, after listening it I haven't found any doubt.

  • @sareberewesarah-bl1fe
    @sareberewesarah-bl1fe Год назад

    Words are not enough to express my gratitudes to you! Much thanks from South Sudan

  • @georgesadler7830
    @georgesadler7830 11 месяцев назад +1

    Professor Organic Chemistry Tutor, thank you for explaining Monotonic Sequences and Bounded Sequences in Calculus Two. I also encountered Monotonic and Bounded Sequences in Advanced Calculus; however, I did not understand Monotonic/Bounded Sequences until I watched and analyzed this great video from start to finish. This is an error free video/lecture on RUclips TV with the Organic Chemistry Tutor.

  • @tevinabeysekera6038
    @tevinabeysekera6038 Год назад +2

    Thanks for explaining so clearly. My professor throws a bunch of complicated logic and formulas only to explain this simple topic.

  • @patriciawarner2505
    @patriciawarner2505 4 года назад +4

    A brilliant video with very clear explanations. Thank you.

  • @norapark
    @norapark 5 лет назад +6

    Thank you this was very helpful! at the right pace and the problems you chose were great!

  • @tinbarbaric8973
    @tinbarbaric8973 2 года назад +1

    The guy who teached me the most of my high school chemistry and maths...

  • @larsskjelstad9931
    @larsskjelstad9931 3 года назад +2

    This just saved my day

  • @akinyimildred6012
    @akinyimildred6012 Год назад

    I'm from Kenya and I like watching your videos. Good job

  • @bonnifaceojok5621
    @bonnifaceojok5621 2 года назад +1

    You're the best of all time, much respect boss, from physics, maths and chemistry oh so amazing....

  • @cochleax
    @cochleax 4 года назад

    king of helping me learn calc during quarantine

  • @nozzerjuice
    @nozzerjuice 5 лет назад +49

    hi (sorry for bad math)

    • @gartyqam
      @gartyqam 3 года назад +1

      hi, sorry at least u have nice body (i saw ur tiktok of u no shirt on hehe :3)

  • @kamsave7277
    @kamsave7277 4 года назад +2

    You clearly explained everything, thank you so much bro.

  • @adiletbaimyrzauulu6589
    @adiletbaimyrzauulu6589 2 года назад +1

    you helped me to get my degree, bro!

  • @robertakovic1320
    @robertakovic1320 5 лет назад +3

    *smacks the table* THANK YOU! Thank you very much... Finaly!

  • @tofunmiaro
    @tofunmiaro 3 года назад +1

    You’re one of my greatest inspirations ❤️♾

  • @berhanuabebe4545
    @berhanuabebe4545 3 года назад +3

    Can you do a video about lower, upper, LUB and GL bounds

  • @kidusbahiru4369
    @kidusbahiru4369 5 лет назад +2

    On my calculus textbook by James Stewart, it says that a sub n is less than a sub n+1. But you said a sub n is less than or equal to a sub n+1. Your definition contradicts the textbook. But great video overall

  • @malr19
    @malr19 Год назад +1

    Your the best tutor 😭

  • @imanmomeni2990
    @imanmomeni2990 6 лет назад +1

    Thanks... I learnt many things about this lecture now

  • @rahakadesh
    @rahakadesh Год назад +1

    when I open any math on youtube then I realise its not your voice I just cancel. THATS WHY I HAD TO SUBSCRIBE

  • @ngaatuband6937
    @ngaatuband6937 3 года назад +1

    Thanks so much, it is very helpful

  • @champ6277
    @champ6277 4 года назад +1

    You are a legend. Thank you very much

  • @sheesh602
    @sheesh602 2 года назад +1

    my appreciation for you do be increasin'

  • @abouosalah1741
    @abouosalah1741 3 года назад +1

    28:00 I see what u did with that factorial. SMART!

  • @scrotumtotem7
    @scrotumtotem7 2 года назад +2

    9:48 why do you need to divide it by A_n+1 for this case, but not for other ones I am still confused as to why this is the case?

  • @sana_136
    @sana_136 Месяц назад

    Very helpful 👍🏻

  • @abraryusuf9933
    @abraryusuf9933 4 года назад +1

    exams tomorrow! helped me quite a bit :D

  • @AtomicSmalls
    @AtomicSmalls 10 месяцев назад

    I thought, because of the growth rate theorem, n! infinity 3^n/n! would be an infinite series. Thus would make it a monotonic, lower bounded, divergent series

  • @Rajivrocks-Ltd.
    @Rajivrocks-Ltd. Год назад +1

    26:47 isn't this incorrect. by the definition of a monotonic series a_n >= a_n+1 or a_n

    • @cubix585
      @cubix585 Год назад

      I’m also quite confused by this, since I’ve only ever seen that as the definition, when it clearly does not work here

    • @Peter_1986
      @Peter_1986 8 месяцев назад

      It strictly decreases after the value n = 2.

  • @arpitvishnoi6517
    @arpitvishnoi6517 3 года назад

    Thank you very much for this .love from india

  • @hilinanegash8520
    @hilinanegash8520 2 года назад +2

    Thank you ❤

  • @abdallababikir9154
    @abdallababikir9154 3 года назад +2

    1:10 doesn't that make a horizontal line both increasing and decreasing?

  • @chatonoel4140
    @chatonoel4140 3 года назад

    you are the best mr

  • @abd......
    @abd...... 2 года назад

    Sir very well done.. Great explanation

  • @lovelysisters7892
    @lovelysisters7892 3 года назад

    sir i have no Idea with video really befire this video thus consept was very bad but now it is very good👍

  • @mwnhasarnarzary9694
    @mwnhasarnarzary9694 6 лет назад +3

    Why don't you make a separate video on complete bolzano-weierstrass theorem

  • @amagiyaisaiah692
    @amagiyaisaiah692 9 месяцев назад

    Very clear

  • @MarcheseMethods
    @MarcheseMethods 5 лет назад +3

    Hello,
    From my experience it doesn’t appear to be a good strategy to assume that an

    • @bottomtext251
      @bottomtext251 4 года назад

      You make the assumption based on your observation by plugging in the numbers.

    • @markdonnelviernes3369
      @markdonnelviernes3369 Год назад

      He should have proved it by mathematical induction

  • @matin-aorosyls.3142
    @matin-aorosyls.3142 3 года назад +2

    Just a clarification,
    at 30:51, you said it is convergent when n starts at 2.
    But regardless the value of n (whether it is positive or negative), it is no longer convergent, right?

  • @halfdonut6505
    @halfdonut6505 6 лет назад +4

    Hello Organic Chemistry Tutor! In your last example, you said that the sequence IS monotonic even though it's increasing for n

    • @benclarke7263
      @benclarke7263 5 лет назад +1

      It has a monotonic tail, and if a sequence is bounded and has a monotonic tail, it is also convergent.

    • @ruger51995
      @ruger51995 2 года назад

      Its wring he did it wrong

  • @suicider8062
    @suicider8062 4 года назад

    always a helping tutor than you

  • @effendi_j.kamal03
    @effendi_j.kamal03 8 месяцев назад

    18:16 why do we have n>=1? Like, if we solve the inequality, the value that comes is -1/2, but if we consider only whole numbers, why didn't we put n>=0? @TheOrganicChemistryTutor

    • @DirtyStinky
      @DirtyStinky 6 месяцев назад

      I know this is a month old but I believe it is due to the fact that Calc 2 will not include negative values for a nth term. So the original problem is a fraction with n as the denominator and therefore we cannot start n from 0 or else it is undefined. So instead we start it from the 1st term n=1 and go up from there.

  • @LongArmsShortTorse
    @LongArmsShortTorse 10 месяцев назад

    I find the concepts of sequences bounded above and/or bounded below kind of hard to understand because the semantic is kind of counter-intuitive for instance bounded below means that the sequence has a lower bound, but from face value it sounds like the sequence would be below a limit by the words "bounded below".

  • @mattheywood
    @mattheywood Год назад

    These videos are the best

  • @adamjahani4494
    @adamjahani4494 5 месяцев назад

    Can you just take the derivative to show that’s either increasing or decreasing. If positive increasing… if negative dec

  • @hellohi-mj8ho
    @hellohi-mj8ho 10 месяцев назад

    What about 1/x where the sequence is bounded and is always decreasing monotonic but is divergent? Doesn’t that break the rule?

  • @yeny7194
    @yeny7194 6 лет назад

    I love you so much for making this video

  • @Deltax0428
    @Deltax0428 Год назад

    20:45 that doesn't mean that the sequence converges if the limit found is 0. It's when the function an converges that its limit is 0

  • @Molly-hk5xc
    @Molly-hk5xc 5 лет назад +1

    God bless you

  • @kelvinndereba5423
    @kelvinndereba5423 3 года назад

    Thankyou for the video

  • @frozenfar7231
    @frozenfar7231 4 года назад +2

    15:59 i couldn't understand what he said and I don't know how he did that. can someone help me please?

    • @mohanadnada4670
      @mohanadnada4670 4 года назад +2

      1/x^2 is the same as x^-2 so derivative of x^-2 is -2x^-3 which is simply -2/x^3

  • @blissnotes3477
    @blissnotes3477 2 года назад

    thank you i enjoyed this!

  • @AbdulSalam-ij1my
    @AbdulSalam-ij1my 6 лет назад +47

    Albert Einstein
    How to do math??
    Step 1= write the question.
    Step 2= cry....

  • @Godsfavourmedia
    @Godsfavourmedia Год назад

    Thanks!

  • @happylilcousin946
    @happylilcousin946 Год назад

    Is there a tip/trick for me to keep up with the math needed to understand this better? I find myself understanding things when he specifically explains them (in detail) but If I was supposed to intuitively get it right I just wouldn't have it on my mind. Thanks!

    • @louaih
      @louaih Год назад

      If you're talking about the algebraic tricks he used, such as manipulating inequalities, I couldn't hope to explain it better than @TheOrganicChemistryTutor. However, my main takeaway from the entire video is that a sequence converges when it is bounded and monotonic. A bounded sequence is a sequence that has a floor and ceiling (lower and upper bounds) as n goes to infinity. A monotonic sequence is a sequence that only increases or only decreases in the long run. Note how in the last example, the sequence wasn't monotonic on n >= 1, but it was monotonic on n >= 2.

  • @ImranHossain729
    @ImranHossain729 4 года назад +3

    Quality content 😍

  • @youtubeproject4831
    @youtubeproject4831 2 года назад

    if d(an)/dn is positive can we confirm that a function is monotically increasing?

  • @tobekami4357
    @tobekami4357 5 лет назад

    This was very good

  • @gurejalectures
    @gurejalectures 5 лет назад

    Very good

  • @thomassimancik1559
    @thomassimancik1559 4 года назад

    Why should the monotonic sequence at 11:45 be greater than or equal to, shouldn't it just be greater than?

  • @AwuraamaDadson
    @AwuraamaDadson 3 года назад

    Thank you again ❤️❤️

  • @Chrisymcmb
    @Chrisymcmb 3 года назад

    Why did you add instead of distribute the "2" in the denominator at 5:52

  • @shantanrs2827
    @shantanrs2827 Месяц назад

    so monotonic functions can have constant sections?

  • @hasnainahmed435
    @hasnainahmed435 4 года назад

    Nice explation keep it up

  • @mingenwu4008
    @mingenwu4008 6 лет назад

    n-> infinite, Lim An = 0, which doesn't guarantee it converges.

  • @senku6277
    @senku6277 10 месяцев назад

    god bless you

  • @Suimiru
    @Suimiru 2 года назад

    Is there a sequence that does not bound by up or down?

  • @shockus1154
    @shockus1154 Год назад

    This guy explains a thousand tumes better than my prof bruh

  • @hey_iam_harshita
    @hey_iam_harshita 4 года назад

    Thank you sir

  • @arunray5365
    @arunray5365 5 лет назад

    Very nice thanks 👌

  • @evanswiafe9760
    @evanswiafe9760 4 года назад

    thank u very much

  • @user-em5ep9zw4z
    @user-em5ep9zw4z 8 месяцев назад

    18:00 a mistake. It should be n >= -1/2

  • @adamwalk3410
    @adamwalk3410 Год назад

    Your a legend

  • @johng5295
    @johng5295 5 лет назад

    Thanks in a million!

  • @fredartson
    @fredartson 8 месяцев назад +1

    bro you don't even sound older than thirty. How do you have the knowledge of all the options? PCBM everything!

  • @SanDex-V-Felix
    @SanDex-V-Felix 4 года назад

    Very helpfull 💕💕

  • @ryeonnaderi6731
    @ryeonnaderi6731 4 года назад

    9:50 why are we dividing an/an+1, because on the first problem we did not have to divide so I am confused on that.

  • @phandinhthanh2295
    @phandinhthanh2295 3 года назад

    I have a question: is it true that whenever we want to determine the monotonicity of a sequence {a_n} we could always use the Calculus method of taking derivative of continuous function f(x) with f(n) = a_n? And if f(x) is increasing on an interval then {a_n} is increasing on that interval and vice versa if f(x) is decreasing on an interval then {a_n} is decreasing on that interval?
    Is this obvious or is there some theorem/corollary stating this?

    • @kwerty4761
      @kwerty4761 2 года назад

      If f(x) is differentiable, then this certainly holds

  • @jacobmoore8734
    @jacobmoore8734 3 года назад

    Are you the dude who makes the Lazy Programmer courses on Udemy? That voice sounds familiar...