When mathematicians get bored (ep1)

Поделиться
HTML-код
  • Опубликовано: 16 дек 2020
  • Just playing around with x = 5
    Original video: • Infinitely Nested Mich...
    Check out Brilliant for more challenging math problems: brilliant.org/bprp/
    🛍 Shop math t-shirt & hoodies: teespring.com/stores/blackpen...
    🌱 Patreon: / blackpenredpen
    😎 IG: / blackpenredpen
    ☀️ Twitter: / blackpenredpen
    🍎 My site: blackpenredpen.com
    #shorts
    bprp x
  • ХоббиХобби

Комментарии • 4,2 тыс.

  • @bprpfast
    @bprpfast  3 года назад +2535

    Let x=5
    ruclips.net/video/jsE0vM6OyC0/видео.html

    • @charlieinthe_box
      @charlieinthe_box 3 года назад +44

      No, no I don't think I will.

    • @josephdjambane2695
      @josephdjambane2695 3 года назад +23

      That's why I chose art

    • @chanceDdog2009
      @chanceDdog2009 3 года назад +9

      Where is the 4 from

    • @advaykumar9726
      @advaykumar9726 3 года назад +1

      I did 100th like

    • @popoduck8309
      @popoduck8309 3 года назад +3

      I finally asked my teacher why this is wrong 😂 well guess what ? You can't multiple it with a variable quantity
      Don't ask me why. He was super convincing.

  • @jimitsoni18
    @jimitsoni18 3 года назад +19021

    He's the student who would multiply both sides with 0 so he could prove the equation

  • @b04n
    @b04n 3 года назад +5405

    When matematicians get bored, they make maths even harder

  • @CommunistFBI
    @CommunistFBI 3 года назад +850

    Student: My method is a lot simpler
    Teacher: No you must use this method. Allow me to show you again.

    • @Indiandragon
      @Indiandragon Год назад +5

      Underrated comment

    • @elisabasco9289
      @elisabasco9289 Год назад +16

      True when i was in elementary i always get the correct answer but i get only 1 pt out of 5pt because my method was always wrong according to my teacher. This is the reason i am scared to do math.

    • @justjoanneofficial
      @justjoanneofficial Год назад +4

      @@elisabasco9289 yeah I understand the feeling 😕

    • @liquidthe_ethiopiannationalist
      @liquidthe_ethiopiannationalist 7 месяцев назад

      😂😂😂

    • @justcommenting5117
      @justcommenting5117 6 месяцев назад +6

      ​@@elisabasco9289did you at least try to understand why she considered your way wrong? Sometimes it's possible to get to the right answer through wrong methods by coincidence and sometimes teachers want tests to evaluate if you've learned the method they've shown (in which case they should ask you to use it in the question). If you understand what you're doing wrong, you won't be scared of maths anymore

  • @cozyJoe01
    @cozyJoe01 2 года назад +3347

    My inner mathematian: Sir you cannot directly cancel Root with Square. You have to introduce a modulus and make two cases to solve it further.

    • @harshmishra7697
      @harshmishra7697 2 года назад +116

      Tum to serious hi ho gaye yaar ....just chill bro👌👌

    • @sekharapramod7819
      @sekharapramod7819 2 года назад +215

      Well technically, the sqrt(x) function has a range of all positive real numbers, so sqrt(x^2) is just x. We know that if sqrt(x) = y then -y is also a solution to x = y^2 because of how exponents work, so we consider it in cases where the sign matters, but the sqrt function itself just returns a positive real number (assuming a domain of all positive real numbers).

    • @mrnoobpianist8564
      @mrnoobpianist8564 2 года назад +17

      Yes..I thought that too...modulus nahi lagaya

    • @nda_cadet_prathmesh7383
      @nda_cadet_prathmesh7383 2 года назад +16

      Bro which planet ?

    • @misbahuddinathar4982
      @misbahuddinathar4982 2 года назад +13

      @@sekharapramod7819 bro.. thats what he exactly meant.. y r u explaining the logic behind his statement?🙄.. and -y as you mentioned will be infinite series of -4

  • @kekwe3088
    @kekwe3088 3 года назад +2924

    X=sqrt(20+X) but X=sqrt(20+X)
    Math in a nutshell

    • @sadasivansl8364
      @sadasivansl8364 3 года назад +11

      Lmao ikr

    • @HR-pz7ts
      @HR-pz7ts 3 года назад +4

      😂😂

    • @sagenmandi617
      @sagenmandi617 3 года назад +6

      😂😂😂😂😂

    • @halalmon
      @halalmon 3 года назад +49

      Whenever I see the word 'sqrt' I always read it as sq*irt

    • @oxxyexe
      @oxxyexe 3 года назад +12

      I think you are a student of computer science (CS)

  • @sithaarthmaheshwaran848
    @sithaarthmaheshwaran848 3 года назад +3604

    *"when u see a 1mark quostion asked in 5 marks..."*

  • @paull2937
    @paull2937 2 года назад +353

    He just created an x=-4 solution.

    • @sidharth8794
      @sidharth8794 Год назад +7

      X=5

    • @Trigged-mv9qw
      @Trigged-mv9qw 11 месяцев назад +23

      @@sidharth8794 2nd step

    • @lonekoq4646
      @lonekoq4646 10 месяцев назад +20

      0(x+4) = 0 therefore 0=0 since (x-5) substituted into 0

    • @gummydebear4030
      @gummydebear4030 10 месяцев назад +7

      But why 4 of all possible numbers

    • @lonekoq4646
      @lonekoq4646 10 месяцев назад +13

      It can be anything and still create an infinite fraction

  • @ji_ni2436
    @ji_ni2436 Год назад +323

    The way he changes his markers have me in shock the whole night😂

    • @Dhruv_J-zr7hv
      @Dhruv_J-zr7hv 8 месяцев назад +3

      I guess he changes like blackpenredpen

    • @PraiseTheLordyourGodJesus
      @PraiseTheLordyourGodJesus 8 месяцев назад

      Ephesians‬ ‭6:10‭-‬18‬ ‭Finally, my brethren, be strong in the Lord, and in the power of his might. Put on the whole armour of God, that ye may be able to stand against the wiles of the devil. For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places. Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand. Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness; and your feet shod with the preparation of the gospel of peace; above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked. And take the helmet of salvation, and the sword of the Spirit, which is the word of God: praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints. The bible is no old book. You have to really let Christ open your eyes; to see the world in shambles. Many people say it's a religion to lock up people in chains, and say it's a rule book.. why? Because people hate hearing the truth, it hurts their flesh, it's hurts their pride, it's exposes on what things have they done..people love this world so much, s*x, money, power, women, supercars.. things of this world. Still trying to find something that can fill that emptiness in your heart. You can't find that in this world.. only in Christ, the bible is no chains, it's a chainbreaker. Breaking your sins into pieces... Repent now, and turn back to the true Lord only.. God bless.
      😢😢😢

    • @STEAMerBear
      @STEAMerBear 4 месяца назад +1

      That’s kinda his “thing.”

  • @theimmux3034
    @theimmux3034 3 года назад +1594

    A first grader: 1 + 4 = 5
    An advanced student:

    • @SilverD33r
      @SilverD33r 3 года назад +11

      Ah, yes, this sooooooo advanced we first did it in our 2nd grade of middle school

    • @theimmux3034
      @theimmux3034 3 года назад +4

      What country are you from? And on what grade are you at the moment and what are you studying in math rn?

    • @SilverD33r
      @SilverD33r 3 года назад +29

      @@theimmux3034 I am from Greece. Our school system is very different from America's if that's where you're from. Our education goes like this:
      1. Kindergarten. You start at five (or four, only if you turn five during the year) and you learn the alphabet and how to count till 10.
      2. Elementary school. It has 6 grades in which you learn the foundation of all important classes (Greek Language and a small amount of literature getting larger while you grow older and pass classes, Mathematics, History- greek Mythology for the 3rd year and actual history in later years, Physics (I don't remember which year you start this class), Music, P.E., Computers, Acting classes (until 2nd or 3rd year) Art. and R.E., which you aren't taught much (this includes all classes stated after physics). There are some classes which are less important and aren't taught with much care such as a class for the environment). We also get a second foreign language which could either be French, German or Italien (mostly French or German) depending on what we choose.
      3. Middle School. It has 3 grades in which you learn things far more complicated and in detail than before (The classes are: Greek, Literature, a much more detailed History, Ancient Greek and Ancient Greek literature (in grade 1 it's Homer's Odyssey, in grade 2 Homer's iliad and in third year Euripides Helen), Maths-algebra and geometry, Physics, Science (Labs aren't used much in my school), Biology, Geography (only for grade 1 and 2), English- where the classes are divided in advanced and starters (but it doesn't matter because the class either way goes by very slowly, to the point where you question the existance of this division), a second language (It can be different from the one you chose during your two last years in Elementary school) like German, French or Italien (some school only have two, or even one second language course you can take), and other still less important subject like computers, technology, R.E., P.E., music and arts (I might be forgetting some)
      4. High-school. It also has 3 grades but it's much more complicated. There are two types of High-schools: one where you go study for the job you've already chosen (which usually are very specific Jobs and you don't have as many options) or one where it can be a lot more general. During your 1st grade of high school in one of the general ones you study all previously stated subjects but at the end of the year you are forced to make a decision that will affect the rest of your life: chose a "heading". I am not too sure of this process since I haven't been through it yet so it's going to be very vague. You basically choose a packet of subjects depending on what you want to do after school is over, help you on finding a college with a process of examination during the end of your 3rd and final year. There are the theoretical (which include greek language, Literature, Ancient Greek, Ancient Greek literature, History, Latin and essay (since I have not yet been in high school I can't really know if they have any other subjects)), there is also the "positive" (in which you study the mathematical and scientific ones like math, science, Physics, etc.), a health heading which you chose if you want to become any kind of Doctor (with classes similar to the positive but also including biology), an Economic heading and I sadly don't know if there are any others. I also happen to have no idea how things work in the other type of high school and I honestly don't plan on knowing.
      ●We don't have lockers or locker rooms, we are graded from 1 to 20 (20 is the highest grade you can get) both during tests and our general grades. We have 3 semesters. From the 1st grade of Middle school we have examinations at the end of the year.
      •We start school on the 11th of September and finish at the start of June (depending on how long the exams take).
      •The bell rings at 8:15, the 40 minutes classes are 6 or 7 ( 7 only on Mondays and Tuesdays in my school) and we finish somewhere between 1 o'clock on six-lesson days and 2 o'clock on seven-lesson days.
      •The grade you need to have to pass is 29 in each class when you add each semester's grades and the final examination.
      •In middle school you don't have final examinations for all subjects, only the basic five till last year but now it's changed again and we have exams in all the basic subjects, including greek and Ancient Greek Language and literature, History, Mathematics, Science, Physics, English and Biology.
      •If we don't reach 29, we retake the examination in August or September while having classes the school provides throughout the summer.
      ●I implied that it wasn't something that advanced because we start studying positive and negative numbers during the last semester of our first grade in middle school, though we are officially taught about hem in our 2nd grade and we perfect it in our 3rd. We still have 3 years of studying when it comes to those who follow a heading with math, which, to me, means that it's not as advanced since we learn it while still in middle school.
      That took too long and my fingers hurt to the point where I wish I would've sent you to Google, but I feel like it's worth it. I feel like I don't make any sense at all so If you have any further questions, ask away, and I will try to answer them all.
      EDIT: I am in my final year of Middle school. I am 15 (our system follows years, which makes me unlucky because I was born on the 4th February, which is why most of my friends are at least half a year younger than me, since our year of birth was 2006).
      I am sad to inform you that I don't know how you call what we do in math right now in English so I will try to show you a small sample, though we know a lot more than this : (2x-4y)(2x+4y)

    • @ahmetfurkandemirkol8892
      @ahmetfurkandemirkol8892 3 года назад +30

      @@SilverD33r wtf is that article

    • @ahmetfurkandemirkol8892
      @ahmetfurkandemirkol8892 3 года назад +3

      @@SilverD33r are you really that good in english i mean writing texts in their rules

  • @mayankbharti7860
    @mayankbharti7860 3 года назад +1738

    When this guy was born, he slapped the doctor for not crying

  • @Tsetsego
    @Tsetsego 10 месяцев назад +23

    He solved a question just backwards 😂

  • @Dylanianalex
    @Dylanianalex 3 года назад +230

    “What Asians do in their free time”

    • @itz_Earthling7
      @itz_Earthling7 Год назад +2

      where are you from??

    • @sarishjourneys
      @sarishjourneys Год назад +2

      No, I'm Asian and i dont do all that

    • @FlyHighTechnoThePig
      @FlyHighTechnoThePig Год назад +9

      As an Asian I can confirm that this is my favourite leisure time activity since I was 3

    • @ErdemtugsC
      @ErdemtugsC Год назад +3

      As an Asian kid myself he isn’t asian, those equations are like 2=0+2, and 2=1+1

    • @a-k9161
      @a-k9161 11 месяцев назад

      Math around

  • @dalekdoctor1
    @dalekdoctor1 3 года назад +928

    Just a gentle reminder that we overthink everything

  • @shiwari1280
    @shiwari1280 3 года назад +4611

    X=5
    X-5 = 0
    X=5
    Edit: thanks for so many likes guys, hope y'all have a great day ♥️

    • @bprpfast
      @bprpfast  3 года назад +581

      Underrated comment

    • @AbhijnanGogoi
      @AbhijnanGogoi 3 года назад +175

      Brilliant! This was something I was doing when I was in 7th grade!

    • @havesabrpatience518
      @havesabrpatience518 3 года назад +19

      True

    • @ashishvaswani5921
      @ashishvaswani5921 3 года назад +181

      You missed one step
      X = 0+5. So x = 5 😂

    • @shiwari1280
      @shiwari1280 3 года назад +33

      @@ashishvaswani5921 i just assumed that people get this automatically but u right lmao

  • @ruby3727
    @ruby3727 Год назад +38

    He's the kind of student who can prove that 50$ = 50¢ for 5 marks

    • @MysteriousObjectsOfficial
      @MysteriousObjectsOfficial 29 дней назад

      50c and 50$. Divide both sides by 50 and get 1c and 1$. Since sqrt(1) is 1, we can square root 1c or 0.01 an infinite about of times and get .99999999999 which is almost equal to 1.

  • @Doomvict
    @Doomvict Год назад +9

    Literally my math teacher over complicating every single question that exists in our knowing:

  • @6Scarfy99
    @6Scarfy99 3 года назад +852

    Girl : I like math
    Me :

    • @ByakuyaKuchiki006
      @ByakuyaKuchiki006 3 года назад +3

      @@sanyamgarg9584 lollllllll

    • @ByakuyaKuchiki006
      @ByakuyaKuchiki006 3 года назад +28

      @@sanyamgarg9584 biology+ math together 🤓🤓😈 😎😎🤣🤣😂🤣

    • @eeshaparuchuri5832
      @eeshaparuchuri5832 3 года назад +3

      @@sanyamgarg9584 🤯

    • @user-hs1kv8rb6x
      @user-hs1kv8rb6x 3 года назад +17

      @@sanyamgarg9584 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏
      आपके चरण कहां हैं महाराज

    • @Hbjbsisbehsbsj
      @Hbjbsisbehsbsj 3 года назад +1

      @@user-hs1kv8rb6x 😂🤣🤣🤣

  • @nomg2023
    @nomg2023 3 года назад +1177

    I like how everyone focuses on how he solved this in a difficult way while he hasn't really proven anything. He has made mistakes

    • @abeerhasan3609
      @abeerhasan3609 3 года назад +42

      I wanna know the mistakes...

    • @nomg2023
      @nomg2023 3 года назад +556

      The explanation might end up a bit long so please bear with me.
      When he multiplied by (x+4) he automatically made it so that x could be either -4 or 5, which means that x isn't necessarily equal to 5, so we are already not proving that x=5. Next, when he rooted x squared, since we don't know if x is positive or negative, it's not equal to x, it's equal to |x|. So we get two equations.
      One is:
      x=√(20+x) ,if x>=0
      The other is:
      x=-√(20+x) ,if -20=

    • @joske7804
      @joske7804 3 года назад +43

      @@nomg2023 he took the sqrt of a squared number which is per definition positive. 20 is larger than |4| so thats always positive as well. This cannot lead to extra imaginary equations.
      Edit: this comment is bollocks, completely untrue.

    • @nomg2023
      @nomg2023 3 года назад +65

      @@joske7804 the root cancels the square. You know x^2 is positive but you don't know if x is positive. If you square a square root you get x. If you square root a square you get
      |x| which is x if x is positive or -x if x is negative. It's basic algebra
      Edit: I just noticed that you said that 20 is larger than |4|. There is no |x| in the second part of the equation (the right one), only in the first one thus creating the two equations. The x in √(20+x) is always a normal x, it never changes to a |x|

    • @atira7169
      @atira7169 3 года назад +1

      @@nomg2023 wtf....im loser

  • @AdityaKumar-gv4dj
    @AdityaKumar-gv4dj Год назад +12

    That's how the infinite radical questions are formed. I think when a mathematician got bored he formed a problem.

  • @mae13gaming
    @mae13gaming 3 месяца назад +4

    Literally me when im bored: *gets called a nerd*

  • @rsigaming8990
    @rsigaming8990 3 года назад +1093

    Plot twist: he actually wrote the equation wrong but at the end he wrote the right answer

    • @eclairelpatato5181
      @eclairelpatato5181 3 года назад +29

      I think nobody understands anything of what he wrote apart from u 😂

    • @peechai528
      @peechai528 3 года назад +2

      yes..

    • @anishkumbhar4962
      @anishkumbhar4962 3 года назад +31

      X=√20+5 but x= 5
      5 = √25
      5=5

    • @joshurlay
      @joshurlay 3 года назад +1

      @@anishkumbhar4962 also, x=-√(20+(-4)) = -4

    • @losso124gg
      @losso124gg 3 года назад

      @@joshurlay teach me the ways of the mathematics

  • @manishakanwar8872
    @manishakanwar8872 3 года назад +313

    Why is not anyone talking about his technique of switching between the two pens easily👍👍👍

    • @zan7848
      @zan7848 3 года назад +2

      you are

    • @pradyumnakrishnatiwari4494
      @pradyumnakrishnatiwari4494 3 года назад +1

      that's what I was going to say !!!!👀😁

    • @RishabhSinghisking
      @RishabhSinghisking 3 года назад +8

      That's why the channel's name is black pen red pen😂🔥

    • @alexsan76
      @alexsan76 3 года назад

      Because idk wht the hell he is doing just i see fucking numbers everywhere

    • @adamwitwicky2789
      @adamwitwicky2789 3 года назад

      Well it is a simple switching. Maybe it is the timelapse that made you feel it like an awe

  • @divyanand5562
    @divyanand5562 2 года назад +34

    Teacher :Did you understand everything
    Me:I even don't know who you are

  • @yoomr.whitee2841
    @yoomr.whitee2841 2 года назад +59

    The way he switched markers is so cool

  • @Jay-mq2ng
    @Jay-mq2ng 3 года назад +2718

    Teacher: “The answers are simple.”
    Smart Kid: “Yeah it’s X=-“
    Teacher: the actual answer

  • @tomcat1184
    @tomcat1184 3 года назад +471

    I like the way he changes his multi coloured markers single handed..

    • @ashwikraj8166
      @ashwikraj8166 3 года назад +9

      He has a chanell blue pen red pen check it out, this chanell is using hus clips

    • @trixzplayzz6944
      @trixzplayzz6944 3 года назад +2

      I do the same with pens while my left hand is busy😈

    • @Its_yer_Dev
      @Its_yer_Dev 3 года назад +4

      Kitne marks ayee is bar ?

    • @tomcat1184
      @tomcat1184 3 года назад +4

      @@Its_yer_Dev 😂😂😂😂😂100/100

    • @shriek_howl21
      @shriek_howl21 3 года назад +5

      @@tomcat1184 अबे साले😂😂😂😂😂 तू ही है वो।

  • @jayjitsingha7317
    @jayjitsingha7317 Год назад +8

    Yes guys this is exactly how we make questions for you

  • @redash4239
    @redash4239 2 месяца назад +1

    When a mathematician is bored they accidentally create a cure for cancer

    • @monapeter85
      @monapeter85 Месяц назад

      Not the cure....They create cancer

  • @abhinav9133
    @abhinav9133 3 года назад +1300

    Le Indian students : I used to do this in highschool.
    😂😂

    • @memeschool6938
      @memeschool6938 3 года назад +217

      JEE advanced students: I used to do this in class 5😂

    • @thomasvarghese4085
      @thomasvarghese4085 3 года назад +46

      Pretty easy though

    • @riddhimanna8437
      @riddhimanna8437 3 года назад +78

      @@memeschool6938 they did teach us this in class 8 in a jee coaching class lol

    • @ankitthakurankit4764
      @ankitthakurankit4764 3 года назад +20

      I use to this while preparing for exams just for time pass

    • @pixla3040
      @pixla3040 3 года назад +7

      Yeah like in my college this topic is going on

  • @tomcat1184
    @tomcat1184 3 года назад +109

    When mathematicians get bored ...
    They go to Deci-Mall

    • @akramknf911
      @akramknf911 3 года назад +3

      Chaba

    • @S78926
      @S78926 3 года назад +3

      How to like this comment infinity times ?????

    • @tomcat1184
      @tomcat1184 3 года назад +1

      @@S78926 thanx .... my comment is very underrated

    • @jimitsoni18
      @jimitsoni18 3 года назад +5

      Lol why am I laughing

    • @chandranichaki9580
      @chandranichaki9580 2 года назад +1

      ruclips.net/video/Upvk1_M0B-k/видео.html😊😊

  • @bpmupandahballia5504
    @bpmupandahballia5504 10 месяцев назад +5

    the real tittle- when mathematician got angry😂

  • @pranavbergale8730
    @pranavbergale8730 Год назад +20

    this is how professional professors create questions

  • @shreyaslinge5106
    @shreyaslinge5106 3 года назад +159

    Everyone looking at his math skills
    Me : he's switching his pens damn fasst

    • @Medellinish
      @Medellinish 3 года назад

      Basic high school math

    • @yeahboi4228
      @yeahboi4228 3 года назад +1

      @@Medellinish it's middle school man

    • @Medellinish
      @Medellinish 3 года назад

      @@yeahboi4228 I'm from Europe and said what would most apply. After elementary school you have 8 years of "high school" here before going to university

    • @yeahboi4228
      @yeahboi4228 3 года назад

      @@Medellinish lm from Europe too and same thing applies here

    • @Medellinish
      @Medellinish 3 года назад

      @@yeahboi4228 so what is the point of a discussion about semantics?? With your answer you clearly seemed wanting to "correct" me whatsoever, but I have never been in a "middle school" since there is no such thing where I live. I guess we still mean the same age, so it's completely unnecessary to have a discussion beside the point and about semantics. Call it what you want jesus.

  • @mjs2016
    @mjs2016 3 года назад +98

    And here am I trying to remember how to use mixed numbers

    • @tarunagrawal9273
      @tarunagrawal9273 3 года назад +13

      I am trying to know what are mixed numbers :):):)

    • @JaiSiyaRamjii
      @JaiSiyaRamjii 3 года назад +1

      @@tarunagrawal9273 😂😅😅

    • @bait5257
      @bait5257 3 года назад

      @pmevsfçfhjn lfoejnj şjlfzjn ıbzbui Bruh

    • @ChaineYTXF
      @ChaineYTXF 3 года назад +2

      Mixed numbers are an abomination. Just put a plus sign in between, like the rest of the world does. I'll never understand why this is still taught today.

    • @abeginnerspov5968
      @abeginnerspov5968 3 года назад

      What are mixed numbers?

  • @NadaShawer
    @NadaShawer Год назад +1

    How my math teacher “simplifies” math problems for us to understand

  • @choppany174
    @choppany174 7 месяцев назад +2

    Mathematics: You either explain everything by logic or become the most illogical subject in the world

  • @sangamkumar8564
    @sangamkumar8564 3 года назад +281

    When the question is of 5 marks,
    And you know just 1 sentence

  • @itzsiana6715
    @itzsiana6715 3 года назад +61

    When you glance away for a second and you look back to the board:

  • @ixivius3227
    @ixivius3227 6 месяцев назад +2

    Pov : you're a teacher making a test

  • @itsiwhatitsi
    @itsiwhatitsi 3 года назад +140

    Ramanujan likes this

    • @vinayakk2745
      @vinayakk2745 3 года назад +22

      Lol, he's blessing this guy from heaven

    • @itsiwhatitsi
      @itsiwhatitsi 3 года назад +3

      @@vinayakk2745 yes!

    • @tomcat1184
      @tomcat1184 3 года назад +4

      No way he is no match of ramanujan !!

    • @vinayakk2745
      @vinayakk2745 3 года назад +7

      @@tomcat1184 bruh

    • @shallower6544
      @shallower6544 3 года назад +9

      @@vinayakk2745 this guy literally multiplied x+4 by 0 in an equation

  • @underwaterpatato5228
    @underwaterpatato5228 3 года назад +38

    My brain has left the chat*

    • @ziad4120
      @ziad4120 3 года назад

      That's because when u aplly sqrt u lose th equivalence, that's just no se'se bulshit

  • @chitrangadhuikey947
    @chitrangadhuikey947 21 день назад +1

    The way he changes pen is more interesting

  • @nami7305
    @nami7305 3 года назад +48

    That one student in class who always solves the questions in a complicated way than it is supposed to be.👏🏻

  • @iloveyousoniwillneverleave9653
    @iloveyousoniwillneverleave9653 3 года назад +16

    Me: looks down for one second after taking notes
    The teacher as soon as i look down:

  • @nduduzoblose4355
    @nduduzoblose4355 3 года назад +86

    It all stopped being mathematically sound at step 3

    • @jaggns5774
      @jaggns5774 3 года назад +1

      well, its asian math.

    • @Red-bw5kl
      @Red-bw5kl 3 года назад +4

      Where did the (x+4) came from ??

    • @nduduzoblose4355
      @nduduzoblose4355 3 года назад

      @@Red-bw5kl exactly my point

    • @cheese6760
      @cheese6760 3 года назад

      Nduduzo Blose ya m2

    • @shottkala969
      @shottkala969 3 года назад +6

      @@Red-bw5kl he multiplied both sides by (x+4) but 0(x+4) is 0 which is why it became (x-5)(x+4)=0. Basically, it’s useless math 😂

  • @ThePraveshchauhan
    @ThePraveshchauhan 3 года назад +69

    So he's the one making maths questions, for our homework.

  • @nithinsirimanne2924
    @nithinsirimanne2924 Месяц назад

    0 is so wrong bro u can break the laws of math with it

  • @rb.arindam
    @rb.arindam 2 года назад +64

    I was gonna pick up where he introduced a second solution by multiplying with (x+4). But then I noticed his first and last value for x remained the same.
    Or did I forget infinite series?

    • @utsavpathak2122
      @utsavpathak2122 2 года назад +8

      Ig when he introduced the x+4 he implies that x=-4 which contradicts x=5

    • @Person-ro6uh
      @Person-ro6uh 2 года назад +9

      @@utsavpathak2122 it gave a second solution to a quadratic, but 'x = 5' is still true. He did not show it, but this was valid because he multiplied (x+4) on both sides, the RHS happened to be 0 so it remained 0.

    • @Aditya-jz7ty
      @Aditya-jz7ty 2 года назад

      When he multiply with( x+4) (x-5)=0 means x=5and x=-4 and i dont think he can underoot this eq because in underoot x should be greater than zero ??🤔🤔

    • @chandranichaki9580
      @chandranichaki9580 2 года назад

      ruclips.net/video/Upvk1_M0B-k/видео.html😊😊

    • @createyourownfuture5410
      @createyourownfuture5410 2 года назад

      @@Aditya-jz7ty Foreigners don't understand Hindi, so your can't use this on an international platform. To many people it will be unintelligible, and to others it may look like the German word Mein, which means mine.

  • @tamirerez2547
    @tamirerez2547 3 года назад +39

    When you marked 3 dots under the rooth, a could hear a voice in me say: DA-DA-DA...

  • @manavkaushik9975
    @manavkaushik9975 3 года назад +17

    That one friend who always writes all the step(sometimes even extra) for the math sum.

  • @rishuraj03
    @rishuraj03 13 дней назад +1

    I have to watch video in reverse order

  • @hebaabdo2768
    @hebaabdo2768 2 года назад +1

    It's not Math if it's not complicated

  • @meanderingmike7640
    @meanderingmike7640 3 года назад +581

    Forget the equation i dont even understand, can we not take a moment to acknowledge the smoothness of that marker rotation? Deadass thought dude was somehow writing black and red with 1 marker until the end 😂

    • @jessezhou2316
      @jessezhou2316 3 года назад +8

      Two markers

    • @funnyyoushouldsaytha
      @funnyyoushouldsaytha 3 года назад +14

      I mean the channel name is black pen red pen, so you’d hope so

    • @Maurizio226
      @Maurizio226 3 года назад +7

      It took me the whole video to notice he had 2 markers in his hand... I can imagine how many time I need to get the equation

    • @jirrajirra2299
      @jirrajirra2299 3 года назад +3

      @@funnyyoushouldsaytha ohhhh you’re incredible man

    • @thatguy1484
      @thatguy1484 3 года назад +2

      I always use two pens too but his pen style not suitable for book writing so i create new method😆

  • @lilisecretworld
    @lilisecretworld 3 года назад +63

    I gotta be honest, I read the title as "When Math gets boring"

  • @NeymarJR-pk4lm
    @NeymarJR-pk4lm 2 года назад +114

    数式を使って、どんなに物事が展開しても、xという名の真理は普遍的でかつ恒久的であるということを示す高度な文化的作品。

    • @dtemtemtv6450
      @dtemtemtv6450 2 года назад +3

      これってなんで最後「=5」になるの??

    • @user-ze9we9ch1j
      @user-ze9we9ch1j 2 года назад +4

      @@dtemtemtv6450 √20+Xを計算してみて下さい。今回X=5と定義されているので√25すなわち5となり、これが無限に繰り返されます。

    • @user-wo4uu3mj9k
      @user-wo4uu3mj9k 2 года назад +3

      三行目の(X+4)ってやったらX=-4になるから無理やんな?

    • @user-ui3zk9bu4g
      @user-ui3zk9bu4g 2 года назад +4

      多田幸平 x-5が0だから何かけても0ってことだよ

    • @69kedees93
      @69kedees93 2 года назад +8

      @@user-wo4uu3mj9k 今回はx=5と定義したため、xはそれ以外の値をとらないのだと思います。

  • @_xQw7
    @_xQw7 5 месяцев назад +1

    How teachers set the paper...

  • @danklord9535
    @danklord9535 3 года назад +20

    Finally!!!now i know how these series are made

  • @cruise__passion2047
    @cruise__passion2047 3 года назад +38

    I Semi i stay automatic.
    money add then multiply.
    i call it mathe mathematic.

    • @Pedro-pl6to
      @Pedro-pl6to 3 года назад

      Jesus loves you obey the Lord, you can be saved Jesus loves you. We need Jesus we sinned Jesus died for us in the cross

    • @lifeislikecockandballtortu3891
      @lifeislikecockandballtortu3891 3 года назад

      @@Pedro-pl6to So you like fairy tales ?

  • @gtaraman
    @gtaraman 2 года назад +39

    Relax it's just zero of the polynomial written in different ways. Not that complex.

  • @FtwH8
    @FtwH8 4 месяца назад +1

    The marker switch was so good😮

  • @fandomtrash8151
    @fandomtrash8151 3 года назад +31

    You: *does cool math thing*
    Me: mhm, i still don't get it

  • @noah9838
    @noah9838 3 года назад +26

    This mans really out here dual wielding dry erase markers😂

  • @anush3420
    @anush3420 3 года назад +19

    My man doesn't even look like a mathematician but sure looks like a Yakuza member

  • @animemoments7777
    @animemoments7777 3 года назад +14

    Me watching the whole video not understanding a thing 👁️👄👁️

  • @adindaajengmarchilia7622
    @adindaajengmarchilia7622 3 года назад +26

    Omg lol
    My brain be like: what's that😭🙄

  • @SpeedForce4525
    @SpeedForce4525 8 месяцев назад +1

    I wasn't sure where this was going at first, but im glad I stayed for the ride!

  • @lastdeat3286
    @lastdeat3286 3 месяца назад +1

    I deadass did this I would just add random stuff to an equation just to make it longer

  • @JustTheHighlights
    @JustTheHighlights 3 года назад +11

    I like how he looks back at at us like "You still following?"

  • @Bigmoneygangsta
    @Bigmoneygangsta 3 года назад +37

    Why would anyone do this willingly

    • @Winter_____
      @Winter_____ 3 года назад

      😂😂😂 really though

    • @gamerz8541
      @gamerz8541 3 года назад +1

      I would, maths is fun.

    • @ssj4edits840
      @ssj4edits840 3 года назад +5

      @@gamerz8541math's anything but fun :/

    • @iyedbouazdia3594
      @iyedbouazdia3594 3 года назад

      @@ssj4edits840 having trouble with your exams huh

    • @ssj4edits840
      @ssj4edits840 3 года назад

      @@iyedbouazdia3594 kinda... XD

  • @MujisimFathimaMohammad
    @MujisimFathimaMohammad 5 месяцев назад

    When math teacher told us to prove it.

  • @bond178
    @bond178 10 месяцев назад +2

    you look hella cool lil bro

  • @alsh7107
    @alsh7107 3 года назад +5

    Using the zero to add the X+4 without consequences is sketchy and probably why this happened.

  • @thediaxd3747
    @thediaxd3747 3 года назад +3

    Meanwhile when linguists are bored:
    YeH iM gOnA kReAtE e LaNgUaGe

  • @Sai_RK
    @Sai_RK 2 года назад +2

    Legends still didn't understand
    But seeing video 😂

  • @Anonymous4045
    @Anonymous4045 2 года назад +2

    0:14 my algebra 2 teacher just punched a hole through the wall lol

  • @holoenjoyer8470
    @holoenjoyer8470 3 года назад +64

    Student: "Teacher you done yet?"
    Math teacher: "With what?"
    Student: "Done making the notes?"
    Math Teacher: "Oh you mean this? I was just bored."
    Student: 😳

  • @manavmnair6975
    @manavmnair6975 3 года назад +8

    Teacher : solve this equation on the board
    Me : time to shine

  • @Firetech2004
    @Firetech2004 2 года назад +9

    That’s how you create a recursive function.
    X = 6
    X^2 = 36 = 30 + 6
    X = sqrt(30 + 6)
    But x = 6
    X = sqrt(30 + x) = sqrt(30 + sqrt(30 + sqrt(30 + …)
    It’s easy to create a recursive function, but solving it is not so simple.
    How to solve a recursive function?
    Question - y = sqrt(600 + sqrt(600 + sqrt(…)
    since y = sqrt(600 + sqrt(600 + sqrt(…)
    Y = sqrt(600 + y)
    Y^2 = 600 + y
    Y^2 - y - 600 = 0
    y = (-(-1)+-sqrt(1-4(1)(-600))/2(1) = (1+-sqrt(1+2400))/2 = (1+-sqrt(2401)/2 = 50/2 = 25 or -48/2 = -24
    Hence y = -24 or 25
    All credits go to my maths teacher for teaching me this trick!!!

    • @Firetech2004
      @Firetech2004 2 года назад +1

      Also did you note that in the first one, x can also be equal to -5? Fascinating stuff.
      Also in the Video problem, x can be -4 too.

    • @slothbearanonymous
      @slothbearanonymous 6 месяцев назад

      @@Firetech2004 x=-4 is a solution to the function y=x^2-x-20 and solves x^2=x+20. But is not a solution of x=sqrt(20+x).

  • @prayformeplease
    @prayformeplease Год назад +1

    Not me already being confused at the third one 💀

  • @vaidehiranade3046
    @vaidehiranade3046 3 года назад +7

    I have watched this over 30 times but still haven't figured out yet 😂😂

    • @peisong1114
      @peisong1114 3 года назад

      It's simple, just replace x with 5

    • @peisong1114
      @peisong1114 3 года назад

      @@Wannabelokesh because x equals five.

    • @peisong1114
      @peisong1114 3 года назад

      @@Wannabelokesh what's wrong with root 20

    • @JaiSiyaRamjii
      @JaiSiyaRamjii 3 года назад

      Its means dont try to take maths in degree college

    • @chandranichaki9580
      @chandranichaki9580 2 года назад

      ruclips.net/video/Upvk1_M0B-k/видео.html🐥

  • @sammassey5587
    @sammassey5587 3 года назад +15

    Being an Indian student i literally died

  • @AizenSosuke-ug7gz
    @AizenSosuke-ug7gz 13 дней назад

    Bro ripped all fundamentals of mathematics...... 😭😂

  • @akiyoshi_skymonkey
    @akiyoshi_skymonkey 2 года назад +3

    3行目で既にX=-4の別解できてるやん笑

  • @paparabi2245
    @paparabi2245 3 года назад +14

    When mathematicians get bored, they do math.
    😮😮😮😮😮

  • @sriramsaipavanrelangi
    @sriramsaipavanrelangi 3 года назад +18

    Oh! Now I understood... This is how JEE questions are Made in India... Lol

  • @ViratKohli1_8
    @ViratKohli1_8 2 месяца назад +1

    We solve question to answer
    Bro solve answer to question
    💀

  • @redberry8168
    @redberry8168 2 года назад +1

    In South korea. middle school students learn the knowledge....

  • @sanjaygupta2584
    @sanjaygupta2584 3 года назад +11

    His swag level is too high😂😂😂

  • @devinkane6476
    @devinkane6476 3 года назад +75

    smart people simplify things everyone else complicates them to make themselves feel accomplished.

    • @NvusGhost
      @NvusGhost 3 года назад +9

      “If you can’t explain it simply, you don’t know it well enough”-Albert Einstein

    • @justinpietrycha2179
      @justinpietrycha2179 3 года назад +3

      Is he really simplifying it, or adding something to the equation that didn't originally exist...?? Or is he just trying to look smart, have only taken Calc 1, but someone smart said, "Opinions are like a holes, everyones got one, and they stink."

    • @animeshpanda1073
      @animeshpanda1073 3 года назад +2

      @@justinpietrycha2179 s t i n k y

    • @justinpietrycha2179
      @justinpietrycha2179 3 года назад

      @@animeshpanda1073 Stinky Pinky

    • @justinpietrycha2179
      @justinpietrycha2179 3 года назад +1

      @ezlyfe I didn't say that you weren't entitled to your opinion. But I guess you felt the need to call somebody else out that looked small to make yourself feel big. Did it feel good???

  • @evabeyza
    @evabeyza 7 месяцев назад +1

    But the case is in the equation both sides have x. This is the part which the problem starts

  • @Slayer-ft6tl
    @Slayer-ft6tl 3 года назад +3

    When you multiply with 0 on the sides😂😂😂

  • @coksevimliyimsonderecedeli4707
    @coksevimliyimsonderecedeli4707 3 года назад +14

    6th step// shouldnt it be root20+x=|x| ?? I was thought we cant delete root and square without absolute value sign like in the 5th step.

    • @EnzoSantos
      @EnzoSantos 3 года назад +2

      @Radu Capșa but when you multiply by (x + 4) it creates another value for x, which is -4

    • @replicaacliper
      @replicaacliper 3 года назад +2

      @Radu Capșa no we can't lol

    • @shashwat4920
      @shashwat4920 3 года назад +3

      If you keep |x| you'll end up with solutions we originally took {-4,5}but if you solve √20+(√20+(√20+... You have to reject -4 as the possible value of the expression...... Btw bprp has a cool beard🙂

    • @replicaacliper
      @replicaacliper 3 года назад +1

      @Radu Capșa you can't LOL everything below (x-5)(x+4)=0 is derived from that step, so the expression we get must equal 5 and 4... Clearly it doesn't so it's nonsense.

    • @replicaacliper
      @replicaacliper 3 года назад +2

      @Radu Capșa that's irrelevant. You just as well could have taken x=-4.

  • @jz807
    @jz807 3 года назад +21

    As a graduate of year 8, I can proclaim with confidence that that is, in fact, incorrect

    • @kurtblancheardina929
      @kurtblancheardina929 3 года назад +3

      Yeah I thought so XD, I wonder where (x+4) came from.

    • @user-xh3nm8oe2l
      @user-xh3nm8oe2l 3 года назад +6

      @@kurtblancheardina929 no (x + 4) part is ok bc if you multiply any number to 0 the result will be 0 as well
      problem is in roots - the fact that x² = y² doesn't mean that x = y
      for example (-1)² = 1² but -1 ≠ 1

    • @romain.guillaume
      @romain.guillaume 3 года назад +3

      It seems correct. The square root is okay because x=5 is positive so the absolute value is indeed just x, and multiply 0 by anything gives you 0 also.
      So everything seems good to me

    • @user-xh3nm8oe2l
      @user-xh3nm8oe2l 3 года назад

      @@romain.guillaume oh sorry i kinda forgot that x has strict value
      then everything is ok

    • @jz807
      @jz807 3 года назад

      @@romain.guillaume EXCUSSSSEEEE me, I'll have you know that I've been elected for star student 3 times in this last month (just to make it clear, I'm joking, my math clocks out sometime during the process, so I have no idea how he does this)

  • @chahat6136
    @chahat6136 10 месяцев назад

    this is what overthinking looks like

  • @Shadowedtrail
    @Shadowedtrail 3 месяца назад

    Bro is doing side missions at this point

  • @kesavae9552
    @kesavae9552 3 года назад +3

    I loved the way he is switching between two different color markers in no time

  • @MiguelLopez-sj2ib
    @MiguelLopez-sj2ib Год назад +1

    This guy is tryna mess with peiple that dont know math

  • @mansishukla3036
    @mansishukla3036 3 года назад +114

    the amount of mathematical rules broken in one single video blew my mind 💀

    • @thouriqnauvalrahmandani5478
      @thouriqnauvalrahmandani5478 3 года назад +6

      Agree

    • @johnmisley5411
      @johnmisley5411 3 года назад +10

      What do you mean? There was only one problem, but that was at the very end

    • @mansishukla3036
      @mansishukla3036 3 года назад +1

      @@johnmisley5411 nevermind

    • @Msb2dds2gmaul
      @Msb2dds2gmaul 3 года назад +5

      @@mansishukla3036 xD the "nevermind" killed me. I looked to the comments for this exact situation and it didn't disappoint

    • @ognjentomcic298
      @ognjentomcic298 3 года назад +1

      Which rules are broken???

  • @ayushchhetri9145
    @ayushchhetri9145 2 года назад +1

    You broke Mathematics law