the ultimate integral starter (u sub, IBP, trig sub, partial fractions & more)

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  • Опубліковано 10 січ 2025

КОМЕНТАРІ • 1,5 тис.

  • @blackpenredpen
    @blackpenredpen  5 років тому +1014

    Time stamps
    I. Know your derivatives 1:06
    II. Reverse Power Rule 8:54
    III. U Sub 18:30
    IV. Know the Famous Ones (part1. the famous first step) 44:00
    V. Say NO to Integral Addictions 1:07:24
    VI. Know the Famous Ones (part2. famous non-elementary integrals) 1:24:24
    VII. Integration by Parts u-dv setup 1:46:26 DI set up 2:14:15
    VIII. Use Trig Identities 2:50:35
    IX. Trig Sub 3:32:00
    X. Partial Fractions Decomposition (all cases included) 4:26:50
    The file: docs.wixstatic.com/ugd/287ba5_9a2f59e31ee3469cbf1236ac69192abc.pdf
    If you enjoy my videos, then you can click here to subscribe ua-cam.com/users/blackpenredpen
    Story about Anna.
    One day in class, I asked my students to guess my first job. Among all the random answers, Anna answered "McDonald's"! However, a guy next to her said "OUCH". Then Anna said "I know because I watched his videos!".
    This is why I wore my McDonald's uniform in this video.
    Story about Matthew.
    One day after my algebra class. A guy (yes, Matthew) had been standing outside waiting for me to finish my class but I did not know who he was. Then he told me that he had been watching my videos and could not believe that he saw me teaching in that classroom. He waited for me and we took a selfie. The following semester he signed up to audit my calc 2 class.

    • @abhishektyagi4428
      @abhishektyagi4428 5 років тому +7

      SIR THE RESOURCES AND LINKS TO LEARN MATHEMATICS THAT YOU SAID IN YOUR VIDEO WITH fematika ARE STILL NOT UPLOADED IN THE DESCRIPTION OF THE VIDEO , please do upload those links

    • @kamalrastogi5041
      @kamalrastogi5041 5 років тому +19

      Solve iit jee advance maths problems challenge

    • @cm221b
      @cm221b 5 років тому +4

      @@kamalrastogi5041 exactly

    • @mjshaheed
      @mjshaheed 5 років тому +4

      Hi, Please enable automatic closed captions for non-native english speakers like me

    • @andrewnikitin7651
      @andrewnikitin7651 5 років тому

      can you show how solve double integral on area x^4+y^4

  • @HDitzzDH
    @HDitzzDH 4 роки тому +2851

    He was at school from 5 pm to 10 pm just doing a bunch of integrals in front of a camera, that's dedication.

  • @ayushkrishn8048
    @ayushkrishn8048 Рік тому +109

    I never used to enjoy doing maths since middle school, but I have been wanting to self study maths for a long time using online resources without a fixed schedule and framework. Your videos really spark my interest in maths. Thank you for your hardwork and dedication.

    • @user-fh2rw9zh8g
      @user-fh2rw9zh8g Рік тому +7

      Same! I wish i can send him a gift as you did😅

  • @tycobrahe7663
    @tycobrahe7663 5 років тому +591

    “I didn’t go to Disneyland, I didn’t go to Disney World. I went to the U world!” Lol
    Love your videos. Passion is unmistakable. Keep it up!

  • @ericabaez3033
    @ericabaez3033 3 роки тому +237

    It so important to show a friendly and welcoming face when teaching something to someone, especially, something that by itself is so overwhelming like Calculus. Thank you for existing and being so good at teaching

    • @blackpenredpen
      @blackpenredpen  3 роки тому +34

      I am very to hear this comment. Thanks. Good luck for you on your calculus. If you need further help, please visit my new “just calculus” channel ua-cam.com/video/e_3zVCaQc9Q/v-deo.html

    • @biggusdickus6436
      @biggusdickus6436 11 місяців тому

      2 years late and now it's my turn to learn from your videos, i genuinely can't thank you enough sir
      You sound incredibly enthusiastic you made me​ a bit excited learning about calc lmao.
      Honestly though thanks, you're a great teacher and person :)@@blackpenredpen

  • @stewartmoore5158
    @stewartmoore5158 5 років тому +383

    Blackpenredpen: **makes 6 hour straight lecture**
    Morpheus: "He is the one."

  • @G21lva
    @G21lva 11 місяців тому +13

    When I graduate, I will come back to this video and thank you for contributing to another engineer in this world

  • @braeling3677
    @braeling3677 5 років тому +1210

    If you’re currently in calc 2 this video is basically your life for the first half of the semester. If you can go through all these you’ll pass for sure.

    • @term1234
      @term1234 3 роки тому +15

      When u r in 10 th grade

    • @Deebs-lx2fm
      @Deebs-lx2fm 2 роки тому +4

      I agree. He is a life savior

    • @jony3781
      @jony3781 2 роки тому +9

      Thats litteraly your final exam in some german schools

    • @hydropage2855
      @hydropage2855 2 роки тому +5

      What if I solved them all and haven't taken any calculus?

    • @JirivandenAssem
      @JirivandenAssem 2 роки тому

      @@hydropage2855 what im wondering as well. Maybe when we get some calculus integrals on the test which we can calculate using our calculator I will just use these methods. And that would be funny. If u can do this u wil have a big advantage over other ppl if u study stuff containing integrals

  • @loopje
    @loopje 5 років тому +770

    This is false advertising. I came here for black pens and red pens, but he started using green pens too

    • @blackpenredpen
      @blackpenredpen  5 років тому +81

      loopje hahahaha

    • @stpuwl468
      @stpuwl468 4 роки тому +8

      4:33:15 it was for Christmas.

    • @SyberMath
      @SyberMath 4 роки тому +3

      I like orange pens! :)

    • @joeljose182
      @joeljose182 3 роки тому +1

      Oh yeah serious crime

    • @aashsyed1277
      @aashsyed1277 3 роки тому

      @@SyberMath HEY!!!!!!!!!!!!!!!!!!!!!!!!!! SYBER

  • @postholedigger8726
    @postholedigger8726 5 років тому +484

    Professor Chow has done a great job organizing this stuff. Due to his excellent lectures and the miracle of pause, rewind and review on UA-cam, you can learn more in one week than you can learn in a year in a traditional classroom.
    SEAN

  • @nathanielgolden3141
    @nathanielgolden3141 2 роки тому +9

    without ANY irony or exaggeration, you are making the world a better place through these videos. Thank you so much.

  • @kinglandon5831
    @kinglandon5831 5 років тому +235

    Not only did your videos help me find my passion for math, but you do them in a fun and charismatic wat

  • @alstamm1508
    @alstamm1508 2 роки тому +46

    Absolute lifesaver. None of the integration techniques are super hard to quiz on individually, but for my midterm I have to look at many integrals and know what technique[s] to apply. Very helpful to have a quick but comprehensive overview of them all in one place

  • @hanma1705
    @hanma1705 5 років тому +275

    This guy deserve's a Reward, he spends 1/3rd if his day in creating math videos.
    You sir, are a legend!
    I still can't forget how your videos helped me in my school exams, even though I scored less then expected, but I really enjoyed your lessons.❤❤❤

    • @blackpenredpen
      @blackpenredpen  5 років тому +28

      Awww thank you Kumar.

    • @hanma1705
      @hanma1705 5 років тому +23

      @@blackpenredpen I pray to God, you get whatever you want in life. Just keeping blessing us with these videos.

    • @hamzanazim5943
      @hamzanazim5943 Рік тому

      1/4*

    • @LewNeko
      @LewNeko Рік тому

      @@hamzanazim5943 24h - (6 to 8hours sleep) = 16 to 18 hours active. 6/16 or 6/18 is approximately a third of his day or even more.

    • @hamzanazim5943
      @hamzanazim5943 Рік тому

      @@LewNeko i was assuming it to be 24 hours, doesn't matter the guy works really hard he is in love with maths in the end that's what matters i enjoyed doing the integrals with him 😁😁

  • @alihansencerberk9670
    @alihansencerberk9670 2 роки тому +16

    I'm currently studying for the physics olympiad. My school doesn't have a good olympiad teaching system so I have to learn most of the subjects by myself. And I couldn't understand integration. Thanks to this video, a lot of my questions are cleared and I can integrate much easier.
    Thank you very much for making my life and olympiad journey a lot easier!

  • @maheshpadmanabh6564
    @maheshpadmanabh6564 5 років тому +117

    As an experienced professional in engineering field, this is the best revision for the basics.Thanks!

  • @pixelatedparcel
    @pixelatedparcel 7 місяців тому +2

    Semi-retired 62 years old, learning math for fun. Recently discovered your outstanding channel. Watched all of this wonderful 6h video: not a dull or confusing moment. A real privilege to have you as a teacher. Congratulations and sincere thanks!

  • @eathanehanthnaidu11a40
    @eathanehanthnaidu11a40 2 роки тому +22

    The sweetest, the smartest, and the non grumpy math teacher. How is it even possible!?😆

  • @AKSHATAHUJA
    @AKSHATAHUJA 5 років тому +368

    Doesn't matter from where you had worked before. Every thing is about knowledge

    • @blackpenredpen
      @blackpenredpen  5 років тому +40

      Yup

    • @avimaybe
      @avimaybe 2 роки тому +3

      @Sebastian Le Roux food 😍

    • @DrunkMagnus
      @DrunkMagnus 10 місяців тому +2

      And the ability to transfer the knowledge
      Which bprp does flawlessly

  • @ncognito12
    @ncognito12 8 місяців тому +2

    Thanks for this video bro, without your help I don't think I would have understood integrals at all. 😊

    • @blackpenredpen
      @blackpenredpen  8 місяців тому +1

      You’re welcome. Thank you for your super thanks, too.

  • @GoodSmile3
    @GoodSmile3 5 років тому +80

    Ok basically whole semester in one video. Would be so useful a couple of years ago for me. At least now students have an ultimate guide. Huge respect man.

  • @zwatotem
    @zwatotem 5 років тому +98

    Yes man, you're right: "Usually the hardest step is the hardest part" (44:44)

  • @hydropage2855
    @hydropage2855 2 роки тому +25

    Thank you very much for this video, professor Chow. For the last few days I've been sitting down and figuring out every integral by myself before you did it, and I've finished. This was a very good experience for me. Keep doing what you do, you're invaluable

    • @blackpenredpen
      @blackpenredpen  2 роки тому +5

      I am happy to hear this. Thank you and best wishes to you 😃

  • @dexio85
    @dexio85 5 років тому +68

    Have to catch a plane in 7 hours in the morning. UA-cam recommends 6 hours of integrals. Guess I'll sleep on the plane :-P

  • @inmer3216
    @inmer3216 Рік тому +3

    The fact that you were able to provide us with such tough material in such a fun and very well put together video is quite amazing. I went from knowing nothing about integrals to having a very solid foundation on integration. Thank you!

  • @Baerchenization
    @Baerchenization 5 років тому +501

    Just remember this: next time you go to McDonald's know that you are the only guy in the room without a Phd... :)

  • @swiftyt6558
    @swiftyt6558 2 роки тому +8

    i am proud to say i finished this video in 2 sittings, i have no idea how you could stand through all of that, that is massive dedication, i attempted 90% of the problems on my own, and almost always got those problems correct after you had explained the method for the starting problem, i got all 3 partial fractions right at the end on my first try. all in all, very epic, now i will no longer fail my test in 2 weeks

  • @arturokullmer8634
    @arturokullmer8634 5 років тому +24

    You are the only person that makes me study and learn in holidays and free time.
    You are a very good teacher, and i think you motivate a lot of people to study math.
    Thanks you. :)

  • @Rocky.7707
    @Rocky.7707 2 роки тому +9

    This is what UA-cam is for. Thank you so much brother for helping all of us. God bless you.

  • @mingbeckwith2232
    @mingbeckwith2232 2 роки тому +20

    I'm taking Calc 2 right now and I went from absolutely hating it to feeling like "I got this" because of your videos. The way you explain things makes it SO much more approachable and I ❤️ your sense of humor. Thank you thank you thank you 🙏

    • @blackpenredpen
      @blackpenredpen  2 роки тому +6

      You got this!

    • @mingbeckwith2232
      @mingbeckwith2232 2 роки тому +2

      @@blackpenredpen I'm watching this video rn studying for my midterm. Thank you for the encouragement you're so nice 😭

  • @kushagragupta8068
    @kushagragupta8068 Рік тому +10

    The amount of blessings and wellwishes you must have garnered from students across the world must be phenomenal.
    You're doing God's work, sir.
    Thank you very much.

  • @SupremeDragonEmperor
    @SupremeDragonEmperor Рік тому +5

    I'm studying for my calc final with this, and it's been *SO FREAKING USEFUL* thank you blackpenredpen!!

  • @paulhaso
    @paulhaso 5 років тому +10

    Ok I'm not learning this yet but you must be a hero for SO many people right now.

  • @Ray-mq3je
    @Ray-mq3je 14 днів тому

    watching this video consistently since three days. Finally reached partial fractions . I must say I feel a lot more confident about integration now. I love your dedication and jolly nature!

  • @waainima
    @waainima 5 років тому +23

    I’m on Diff Eq right now, but you save my ass back then. Thank u, much love from the Philippines!

  • @kamarieirina
    @kamarieirina 2 роки тому +22

    This is my 1st video i watched on this channel , 1h in and im in love , the structure , the explanation-amazing work and effort , im gonna say , if teachers in schools / uni would put at least half the effort you did , we would most likely be all mathematicians 🙏👏👏 thank you kindly from all of us , for putting everything on shelves in our minds 😬 i will watch this one and more of your videos and im sure ill do better on my exam 💪Thank you again🙏🙏

    • @blackpenredpen
      @blackpenredpen  2 роки тому +3

      Glad to hear! Thank you for your kind words!

  • @erforscher
    @erforscher 5 років тому +40

    I will watch this in place of movies. Thankyou very much Sir. From an Indian student.

  • @grahamwilson8843
    @grahamwilson8843 Рік тому +3

    I have slowly but surely been falling behing in my calc 2 class, and this is giving me some confidence that I'll be able to get back ahead of it before too long. Thank you so so much!!!

  • @blackpenredpen
    @blackpenredpen  5 років тому +153

    Derivative starter next?

    • @abhishektyagi4428
      @abhishektyagi4428 5 років тому +1

      SIR the resources and links to learn mathematics that you said in you video with fematika are still NOT UPLOADED in the DESCRIPTION of the video , Sir please do upload those links

    • @justabunga1
      @justabunga1 5 років тому

      Yep, let's do that.

    • @Nickelicious7
      @Nickelicious7 5 років тому +22

      Could you do a Series starter at some point?

    • @blackpenredpen
      @blackpenredpen  5 років тому +14

      @@Nickelicious7 ok!

    • @abhishektyagi4428
      @abhishektyagi4428 4 роки тому

      @@twopie6911 nothing just wanted to know the resources could you help me
      Don't say Google

  • @danielrinconcaicedo9272
    @danielrinconcaicedo9272 4 роки тому +5

    You just give me the courage that i lacked to really study integrals, THANK YOU.

  • @zacbenson1743
    @zacbenson1743 3 роки тому +43

    You and the organic chemistry tutor are single handedly backpacking me through calc2-3… is there any chance you can start a tensor calculus series?

  • @wrighty1729
    @wrighty1729 4 роки тому +8

    I can see passion in your eyes. Respect.

  • @monica-ww8gi
    @monica-ww8gi 5 років тому +455

    honestly integration is a lot more fun then people make it out to be

    • @Nain115
      @Nain115 5 років тому +7

      You do know. :3

    • @vianneyedie4066
      @vianneyedie4066 5 років тому +14

      Lebesgue integration? Fun? Lmao

    • @doddlebutt5352
      @doddlebutt5352 5 років тому +31

      @@vianneyedie4066 99% of the people are referring to Riemannian integration... but you're right, Lebesgue integration is the worst.

    • @Azrail127
      @Azrail127 5 років тому +3

      Indeed

    • @LORD-kg4sl
      @LORD-kg4sl 4 роки тому +6

      @@doddlebutt5352 both are fun when you know to do it i dont know how to do it though lmao

  • @strafe4922
    @strafe4922 2 роки тому +2

    This gentleman really knows how to teach math!!! I wish he was my Calc II prof right now he's made this much more clear in 5 hours than 25 hours worth of lectures with my prof!!!!

  • @me.5622
    @me.5622 5 років тому +6

    This is one of the best math videos ever made.

  • @GreAse0MonKey27
    @GreAse0MonKey27 4 місяці тому +1

    Best Moment 1:33:10 (edit and 3:06:17) That's Dedication.
    Teaching whole integration to a camera in empty room on a white board while holding a mic for 6 hours straight.
    Thank You a lot for this video.
    More edit More Funny Moments -->
    3:39:10 "Welcome to the theta world"
    3:39:42 "Tangent square theta"
    3:40:00 "how to make 1 to 9" "Don't say plus eight"
    :D

  • @johanvanwyk9017
    @johanvanwyk9017 5 років тому +4

    writing Engineering maths in this week, I watched the whole video and did each example with you. It's clear that I had to learn my derivatives before trying to do the integrals myself. thank you for saving my module!

  • @deana4365
    @deana4365 12 днів тому

    It may seem silly but until you explained how the constant is absorbed into a new C at the end (3:51:24), I never knew why some numbers seemed to "disappear" when comparing my results with the standard ones. It was driving me crazy and I didn't know how to formulate the question too in order to get an answer. This video is pure gold, thank you so much for your hard work.

  • @marty5585
    @marty5585 2 роки тому +5

    Thank you so much for this video! Before watching this I had a bad understanding of the integration techniques and I wasn't sure how to do most of these. After finishing this video I feel a lot more confident about my upcoming exam thanks to you. I appreciate you spending the extra time explaining the steps.

  • @keronasr6547
    @keronasr6547 8 місяців тому

    This man either started this video right after his work shift or was ready to start his shift right after recording. Huge amount of respect for your work ethic and dedication. You've helped me throughout many exams !

  • @beterax
    @beterax 4 роки тому +6

    I love this video so much, I have a big test tomorrow and this is like the ULTIMATE review of every method. Thank you so much!

  • @craigdean5013
    @craigdean5013 Рік тому +1

    Liked your comment thanking your prior instructors who mentored you. So often most of us thrived because of a similar mentor earlier in our educational journey. Your working knowledge of mathematics is electrum. I am watching your podcasts daily to engage my mind more as I age. I am seventy five and using your workshops to minimize dementia. I am a physician but studied engineering over fifty years ago. It is fun to try to rediscover the integral calculus of my earlier life. Nice job.

  • @DerLeeker
    @DerLeeker 5 років тому +53

    great for a sleepless night, more interesting than reading Kant for 1 minute

    • @DerLeeker
      @DerLeeker 5 років тому +1

      this is a bit ambigious ... i meant by that that i could probably hold my concentration for 6 hours straight when doing math (the best drug there is!), but would loose it after 1 minute of Kant

    • @CleverMonkeyor
      @CleverMonkeyor 5 років тому +1

      More interesting than reading Thomas Aquinas for 10 seconds.

  • @sreevinayaks8027
    @sreevinayaks8027 7 місяців тому

    The amount of joy I got from the video realising I know 90 percent of the stuff is immaculate. Thanks for the video Math God.

  • @botondzalavari4209
    @botondzalavari4209 2 роки тому +4

    I'm going to 11th grade in Hungary, and I'm probably not going to use this until university but I like math so I study it in my free time as well. Thank you BPRP for making amazing content!

  • @mariialeonn
    @mariialeonn 7 місяців тому +1

    im using this video to study for my calc 2 midterm, which covers all the topics in this video! you make integration so much fun!! thank you!!

  • @loubeauchesne8771
    @loubeauchesne8771 2 роки тому +3

    was procrastinating studying for my calc 2 final and this came up in my UA-cam feed, a very good refresher and clarification on a lot of material, thanks :)

  • @elquesohombre9931
    @elquesohombre9931 Рік тому +1

    Actually surprised myself seeing as how I am watching the entire thing wthout skipping through sections or anything. It's genuinely great review and for those who have never learnt much about integrals, this is a great way to get into them. 4 years and still incredible.

  • @panavsingh4846
    @panavsingh4846 2 роки тому +4

    Best maths teacher I have seen

  • @cuberdaboi2397
    @cuberdaboi2397 11 місяців тому +1

    Thank you for making this, I’m in 8th grade and study math on my free time. Your videos are very helpful and you are a great person for doing this 😊

    • @rektspresso7288
      @rektspresso7288 11 місяців тому

      If you're in 8th grade and already studying math at this level, that is extremely impressive and just really cool. Keep it up!

  • @shayenkerai8853
    @shayenkerai8853 2 роки тому +3

    I'm still studying A-Level Maths so this should be too advanced for me but I watch so many math videos in my spare time that I managed to understand every problem. Thanks for explaining everything so simply when there are complex ideas at play.

  • @KoopstaKlicca
    @KoopstaKlicca 2 місяці тому

    I've been out of school for a few years and I was put immediately put into a Calc II class, so I basically have a 5 year gap between Calc I and Calc II class. I've been having to spend like 4-5 hours per night after work to just catch up and relearn a lot. These videos aren't just educational but motivational to see someone spending as much time as I do in a session. Thank you so much

  • @TheSpokenBanana
    @TheSpokenBanana 3 роки тому +6

    Thank you so much for doing this. I'm taking Calc II right now and it's been going pretty rough. I never got a real good understanding of integrals in Calc I. But this video has been super helpful to me. Thank you again! Hopefully I'll pass the class!

  • @haroldvillacorte2092
    @haroldvillacorte2092 Рік тому

    21:30 I like the way you did U-substitution, solving for dx then substituting it back in. Up until now I've been reconciling it my head through some type of strange osmosis.

  • @NikitaNair
    @NikitaNair 4 роки тому +17

    I can literally watch your videos for hours.... You are so knowledgeable and you really grab your viewers' attention ❤️ Sending you so much love for teaching Mathematics in a fun and interesting way!!!

  • @okworld.____2187
    @okworld.____2187 Рік тому +1

    You're the version 2.0 of the mathematics legend Mohit Tyagi sir from India. appreciate your job of amalgamating all those integration techniques together, much needed lec. thank you!

  • @maulanayafiedanendra431
    @maulanayafiedanendra431 5 років тому +4

    I really enjoyed this. Brings me back the memories in high school back then. Your explanation is clear and fun at the same time. Good job!

  • @alizachazin1063
    @alizachazin1063 Рік тому +2

    You retaught me integrals two days before my final. I cannot thank you enough

  • @whoami8434
    @whoami8434 5 років тому +6

    I literally hated all three semesters of calculus but somehow you make it sound fun. I hope you have videos for differential equations.

    • @blackpenredpen
      @blackpenredpen  5 років тому +2

      Who Am I? I have them already. Please check my playlists

    • @whoami8434
      @whoami8434 5 років тому

      blackpenredpen dawg, you the best. Much love from Ohio.

  • @bazboy24
    @bazboy24 2 роки тому +2

    You are the best maths teacher I have ever seen

  • @shreyaskelkar2057
    @shreyaskelkar2057 5 років тому +10

    Big fan of yours..... I'm also a student from India appearing for IIT-JEE exam this year..you have helped me a lot by providing quick tips for calculus
    Thank you sir 😊✌️❤️

  • @kaamilmirza6963
    @kaamilmirza6963 4 роки тому

    This is such a life savior. I pause video on questions, try it myself and if I am stuck or don`t get them right, you are there to explain. Thank you.

    • @georgepeterson2655
      @georgepeterson2655 4 роки тому

      Just watch this impressive Math channel ua-cam.com/channels/ZDkxpcvd-T1uR65Feuj5Yg.html

    • @kaamilmirza6963
      @kaamilmirza6963 4 роки тому +1

      @@georgepeterson2655 thanks man sure

  • @manav8094
    @manav8094 5 років тому +6

    I am preparing for jee mains , which is a testing exam for students aspiring to do engineering . And yes i could do all these questions you did ... but the way you did was awesome . Without any break . Wow !

  • @kezmichničano
    @kezmichničano 5 місяців тому

    I am an incoming engineering student and I am very thankful for your videos. I hope all educators were as dedicated as you in teaching!!! (hoping to pass calculus 2)!!

  • @talramot2631
    @talramot2631 5 років тому +5

    It's a really helpful video, i couldn't stop watching it so I watched the whole video!

  • @zacbenson1743
    @zacbenson1743 3 роки тому +2

    Just to express my gratitude, I ordered your integral t-shirt! Thanks so much for the help and dedication!

    • @blackpenredpen
      @blackpenredpen  3 роки тому +2

      Thank you for supporting! Best wishes to you!

  • @sarojpandeya9762
    @sarojpandeya9762 5 років тому +4

    I am recommending my students to learn from your fabulous work. Greetings!!!

  • @pseudolullus
    @pseudolullus 2 роки тому +1

    It's been 15 years since I passed Calc 2 and this video has been excellent reviewing material!

  • @danielclarke8053
    @danielclarke8053 5 років тому +9

    You, sir, are the best teacher I've seen in a while!

  • @naloliwaerasmus9929
    @naloliwaerasmus9929 Рік тому +2

    This maybe 4 years old but it really is helping me, thanks alot I have been looking for this for long

  • @josephymenchu
    @josephymenchu 5 років тому +4

    You are such a great inspiration. I aspire to be a teacher like you.

  • @kristianhans7588
    @kristianhans7588 Рік тому +2

    Just finished the whole video and I have my final exam tomorrow morning. Only 6 hours to go till my final calc 2 exam. I have faith that I'll pass. Thank you so much.

    • @kristianhans7588
      @kristianhans7588 Рік тому +2

      @@shrewd69 it was okay...I'm not gonna lie that I knew everything but I was able to do several integrations. The thing is calc 2 exam is not only integrations but also word problems and applications...so for the integration parts, they went well 🙂...hats off to blackpenredpen🫡🤝

  • @rurafs7934
    @rurafs7934 5 років тому +5

    Thanks you teacher !
    I was able to understand calculus on 10th grade, usually differentiation and integration is be taught on 12th grade, but because of your channel, I was able to understand it within 1 year!
    And one more time,
    Thanks you teacher

    • @RyanForx
      @RyanForx 5 років тому +2

      Ay we almost have the same time for understanding calc, except im in 9th grade and started learning some of calc 1 at the end of 8th grade, good luck

  • @bernard00g
    @bernard00g 2 роки тому +1

    Excellent!! I used this video to study with my daughter and was all we needed. Thank you!!

  • @NileshRamphal
    @NileshRamphal 5 років тому +12

    I always watch your videos when I need inspiration to learn maths and calculus.

  • @row3186
    @row3186 7 місяців тому

    You make things so much easier to understand. Very straightforward no nonsense style of teaching.

  • @ZephyrEclipse
    @ZephyrEclipse 5 років тому +4

    Fantastic job! This really helped, thanks for putting in so much effort!

  • @loopilicous
    @loopilicous 4 роки тому +2

    I cannot believe the time and effort you put in to this video (and others). It is so extremely helpful. I am in engineering and did not have a good Calculus foundation which has bit me in the butt. Thanks to you, I now can master it so integration does not worry me as much! Thank you for your passionate, clear, fun, and helpful teaching!

  • @diegosc985
    @diegosc985 2 роки тому +3

    Thank you professor, you helped me quite a lot. I think I love calculus thanks to you. I'm at George mason university in Virginia.

  • @michalisl.3798
    @michalisl.3798 3 роки тому

    I'm studying electrical and computer engineering at the university of Patras, Greece. Thank you for this. You're an amazing teacher.

  • @cameronfraser709
    @cameronfraser709 5 років тому +24

    1:42:23 Happens every other week.

  • @mubianalisulo2200
    @mubianalisulo2200 Рік тому

    Simple by, looking. When someone is explaining for him to be able to elaborate well like this he has past through thick and thin .you are doing a very good job sir keep it up .

  • @martinr3167
    @martinr3167 5 років тому +25

    43:30 Wouldn't the 2 go into the +C ?

    • @blackpenredpen
      @blackpenredpen  5 років тому +16

      Oh yea. It would.

    • @martinr3167
      @martinr3167 5 років тому +3

      @@blackpenredpen Thank you so much :) I love your videos specially the long ones like this.

    • @hiddenlights2809
      @hiddenlights2809 4 роки тому

      So kinda. My professor brought up the point that if you had a undetermined constant, then double it it's still a undetermined constant

    • @elab4d140
      @elab4d140 4 роки тому

      2C=C

  • @RitaDeCassia-lovem
    @RitaDeCassia-lovem Рік тому

    4:26:46 this part is just so gold, professor looked right into my soul knowing i was already on my knees

  • @nezlol1234
    @nezlol1234 Рік тому +3

    ‚Usually the hardest step is the hardest part‘
    -bprp 2019

  • @TheZmoliver
    @TheZmoliver 17 днів тому

    I always keep coming back to this video as a refresher and it makes doing more advanced integrals so much easier!

  • @mohammadzuhairkhan8661
    @mohammadzuhairkhan8661 5 років тому +72

    Goodbye sleep, it is 12 am

  • @neilgerace355
    @neilgerace355 5 років тому +1

    4:13:10 From 1982-85 I went to Swanbourne Senior High School, where I studied some calculus, I think it was about your Calc 1 level. We had to learn all the trig identities under the sun in Year 8 or 9. The hardest one I still remember is:
    2 cos A cos B = cos(A+B) + cos (A-B)
    which we learned as 2 cos cos = cos sum + cos diff.
    However, watching your videos reminds me of so much I'd forgotten! I enjoy learning it all again from you.
    Cheers from Perth, Western Australia!

    • @blackpenredpen
      @blackpenredpen  5 років тому +1

      Neil Gerace ah nice! I am happy to hear. Thank you for sharing, Neil!

  • @nadiapaoladejesusramirez5688
    @nadiapaoladejesusramirez5688 5 років тому +4

    Wuo you're incredible! I admire you !

  • @mahdimohammed18
    @mahdimohammed18 5 років тому +2

    Your work ethic is unmatched. Keep it up!