Why Negative multiplied by Negative is Positive (in Hindi)

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  • Опубликовано: 25 ноя 2024

Комментарии • 462

  • @sagnikmukherjee322
    @sagnikmukherjee322 3 года назад +135

    Really hats off to you sir ! I am currently preparing for JEE ADVANCED and your videos are like energy boosters to me, now I know a lot of things about science and fell in love with it just for you. Seriously *A great teacher can change boring things into interesting ones* 😍😍😍

  • @kartikagrawal4354
    @kartikagrawal4354 3 года назад +20

    What is reaction?
    -VE of action
    And what is action?
    -VE of -ve action
    So -ve means ulta and ulte ka bhi ulta=+ve MEANS seedha
    Sir ye jo maine upar likha hai ye mujhe just abhi pata chala is video ko dekhkar
    THANKYOU SO MUCH SIR
    MAI IS QUESTION KA ANWER CLASS 7TH DUDH RAHA HU WHEN I READ INTEGERS FOR THE FIRST TIME currently I am preparing for NEET 2023 examination

    • @bhartipatel952
      @bhartipatel952 2 года назад

      I can't understand 😶😶 can u tell me in detail🙏🙏

    • @_Mr.Lucky.
      @_Mr.Lucky. 2 года назад

      App the best

    • @Java_RAM
      @Java_RAM 3 месяца назад

      Nikla NEET?

  • @nasimson
    @nasimson 2 месяца назад +3

    Thank you. After not being able to understand this in school, college, university & home .. now I finally understand it after 35 years. Very very grateful

  • @Yuvrajsingh-3ub
    @Yuvrajsingh-3ub 3 года назад +28

    Sir You are Great Teacher !! No one Tell us this thing ...

  • @Rahul_deadpool
    @Rahul_deadpool 3 месяца назад +15

    Aise teachers kabhi mile hi nhi 😢 I'm 90's kids. Aisa puchhane par latiyaa dete the teacher 😂😂

  • @Cant_think_of_any
    @Cant_think_of_any 2 месяца назад +1

    This is how teachers should have teached. Literally after years i am having this understanding how things workm thankyou

  • @yt_abhishek07
    @yt_abhishek07 3 года назад +5

    😱 aisa kabhi soche nahi thai... 🔥
    Thank you sir... 🙏🏻

  • @satyampatel8577
    @satyampatel8577 3 года назад +7

    Wow wow what a crystal clear explanation 👌👌👌

  • @suprithAnCom
    @suprithAnCom Год назад +4

    Ohhh
    So anything negated 2 times is postive🙏
    Thanks a lot sir..
    If negated 3 times, it's negative...

    • @joydeepsingh9113
      @joydeepsingh9113 4 месяца назад +1

      but why ? what is the logic .. that no one explains

    • @suprithAnCom
      @suprithAnCom 4 месяца назад +2

      @@joydeepsingh9113 bro he told logic in video.
      Postive means we move to right on number line.
      Negative means reverse, so reverse of right is left.
      But 2 times negative is reverse of reverse, ie straight, that is right side on number line.
      Like what happens if you take U turns 2 times? You end up in your first direction.
      Think of negative sign as a u turn

    • @joydeepsingh9113
      @joydeepsingh9113 4 месяца назад +1

      @@suprithAnCom thank you

  • @MrSandyMusic
    @MrSandyMusic Год назад +1

    In school our teachers... Be like
    - × - = +
    + × - = -
    - × + = -
    + × + = +
    Ise rat lo..
    Ajj rak rata hua hi tha but ajj sir ne sara concept clear kr diya.. Thnq sir.. Teachers like you are very rare.. 🙏

  • @manahil558
    @manahil558 3 года назад +1

    Sir please continue such type of videos! These are very helpful for me. Mujhe kbhi nhi pta tha is ke bare mn bss yahi ratta lgaya hoa negative negative positive blaa blaa. Real Math smjh a rhi!❤️👍

    • @rajraj-bm3cm
      @rajraj-bm3cm 3 месяца назад

      Ncert books Class 6 ka padhe usme sab समझाया हुआ है 😊

  • @Mukesh_Kuriya
    @Mukesh_Kuriya 21 день назад

    I had heard your voice still now today I watched by eyes..good to see you sir. Blessed be. U r gr8

  • @timesofatharva
    @timesofatharva 3 года назад +7

    Sir, why we carry during addition and subtraction.

    • @nkitydv
      @nkitydv 3 года назад

      Same question

    • @AYUSHKUMAR-wn4oc
      @AYUSHKUMAR-wn4oc 3 года назад +1

      Bro,Carry in addition is a kind of formula for addition which can be proved on number line
      Same as (-)×(-)=(+) is a formula for multiplication which is proved by our sir in this video.....💗💗💗

  • @piyushSharma-me7cp
    @piyushSharma-me7cp 3 года назад +2

    Sir i love your teaching method you are a genius

  • @palakurthisrinivas1
    @palakurthisrinivas1 2 года назад +4

    In my childhood i asked this doubt 50 members above all are class first rankers 😃😃😃 no one given answer
    Simply laughed
    You are the excellent sir 😀😀😀😃😃

  • @syamasundararao3149
    @syamasundararao3149 3 месяца назад

    It is really good for teachers to know. Many teachers hardly give this practical geometric technique to students in primary clssses.

  • @sagardhauni1078
    @sagardhauni1078 3 года назад +2

    Sir please answer my some queries
    1) why mass of atom of element determine it's physical properties.
    2) why no. of electron and proton in atom of element determine it's chemical properties
    3) why isotopes of elements become radioactive due to presence of extra neutrons in their nuclei

    • @edupoint.secondary
      @edupoint.secondary  3 года назад +1

      Sagar, video is available for first 2 questions.
      For third question you have to visit EduPoint and have to watch the videos of the chapter 'Nuclei'.

    • @sagardhauni1078
      @sagardhauni1078 3 года назад

      Thank you sir got my answer

  • @progaming4563ak
    @progaming4563ak 3 года назад +1

    Sir, Aap ne mere saare doubts solve kar diya . thanks

  • @bhavdeepsahu8455
    @bhavdeepsahu8455 3 года назад +1

    सर आपका बहुत बहुत धन्यवाद
    Very informative video.

  • @goswamibhavik8602
    @goswamibhavik8602 3 года назад +1

    Thank u sir I am physics teacher but daily I am learning to u

  • @tintinfan007
    @tintinfan007 2 месяца назад +2

    there is a very simple logic to understand this : the enemy of my enemy is my friend

  • @bharatiyat4842
    @bharatiyat4842 18 дней назад

    Dear sir, your explanation is an eye opener. I had never thought of such a great explanation. We need more thinkers like you. All the best.

  • @allsfacilitated2630
    @allsfacilitated2630 3 года назад +8

    SIR, We know that
    'To every action there is equal and opposite reaction'
    If it is so then if we consider a collision in which a object is stationary.
    Let us consider a object in motion as O¹ and stationary object as O² where both have same mass then
    In this collision O¹ will exert a force on O² which will cause a displacement i.e work is done on O² by O¹
    But according to 3rd law O² will also give some reaction which will cause a displacement in O¹.
    But we observe all the energy which was given by O¹ -> O² was again given to O¹ in form of reaction.
    So how does O² move if all energy was taken and again given away by O² to O¹

    • @gojoMaths
      @gojoMaths 2 года назад

      O¹ has momentum as it is in motion so the force applied by O² by N3 law is used up in making the O¹ stop and thus they both show bit motion and stop after collision- mass of both is noted in it

    • @aashb6637
      @aashb6637 2 года назад

      O2 does not give energy to O1, it applies a reaction force. If O1 doesn't move at all after the collision, this reaction force hasnt performed work (no displacement), and hence there is no energy transferred back to O1.

    • @mathematicsbackground.6377
      @mathematicsbackground.6377 2 года назад

      Action reaction force doesn't cancel each other...
      So both of the object have experienced same force but as O1 had also some velocity so effect on it observed by us is 0...
      But before displacing o2, O1 overcomes that reaction force..

  • @venkatfaraday
    @venkatfaraday 2 года назад +1

    Absolutely what I'm teaching is , what you said..... 🙏🏻🙏🏻🙏🏻🙏🏻

  • @simcha7951
    @simcha7951 Месяц назад

    We learnt in our schools, and our teachers were very good explaining basics

  • @MdModassir-p3x
    @MdModassir-p3x 8 дней назад +1

    Wow nice explanation ❤

  • @MujahidKhan-wz4qi
    @MujahidKhan-wz4qi 3 месяца назад +1

    Simple stuff, but not everyone can explain this well. Keep it up! It will help millions of people.

  • @anuragpandey2004
    @anuragpandey2004 3 года назад +20

    SIR DIFFERENCE BETWEEN INFINITY AND NOT DEFINED OR UNDEFINED 🙏🙏🙏

    • @poojabhatt4671
      @poojabhatt4671 2 года назад

      Nothing they are all same since infinity is undefined

    • @dwipanjankanjilal8181
      @dwipanjankanjilal8181 Год назад +1

      Not defined and undefined is same thing e.g 0/0 is undefined ..............infinity means take a largest positive no. Then add 1 to it u will get a more positive value

    • @pasamsubramanyam6257
      @pasamsubramanyam6257 3 месяца назад

      ​@@poojabhatt4671they are not equal.

  • @ankr7.0
    @ankr7.0 3 года назад

    Sir you teaches us very deeply
    You are the great Sir

  • @maphician7807
    @maphician7807 3 года назад +2

    Thanks a lot sir
    For this type of explanation 🙏🙏🙏

  • @diyasheoran4186
    @diyasheoran4186 3 года назад +5

    Sir in some said that pressure in fluid is due to their random motion and some said that it is due to gravity but while deriving formula we only consider gravity

    • @TheJawlaLab
      @TheJawlaLab 3 месяца назад

      Hi ma'am,
      I found this comment after 2 years, and it is a really Interesting question. I am leaving my answer for everyone going through this comment.
      yes, the pressure exert by the fluid is due to the motion of their particles, and when fluid act in the influence of the gravity then the particles don't have random motion, the resultant vector of all the particles point towards the downward direction.
      That means in the influence of the gravity particles of any fluid tends to move more toward the downward direction.
      so, That is the main reason why we consider gravity if deriving the formulas.
      Thankyou

    • @siddharthchhetri4927
      @siddharthchhetri4927 18 дней назад

      It actually depends on which pressure you want to consider.. the pressure you first mention is pressure due to the molecular interactions between the molecules and the wall of the container..... But the second pressure you mention is due to the weight of the liquid... Inorder to find out the molecular distribution of the molecules we have to go through the intramolecular pressure.... But for normal classical problems like pressure exerted by liquid we have to know its pressure due to weight

  • @manishbhatia5302
    @manishbhatia5302 Год назад +1

    Appreciated SIR, EXPLAINED VERY WELL USING LOGICS. MANY THANKS

  • @saudhassan3516
    @saudhassan3516 2 месяца назад +1

    Sir mujhe abhi apni begum ki Samajh aae wo bolti han mere sar main dard he main chae nahe bana sakti aap khud bana lo to ye ek -tv hogia phir jb main khud chae banae jata Hun to wo mujhe kehte han ke mere Lia bhi ek cup bana den ek dosra -tv hogia is ka Matlab do -tv ki waja se do cup chae bun gae yani positive hogia...Wah shandar

  • @sagardhauni1078
    @sagardhauni1078 3 года назад +2

    sir you are a great teacher & you teching skills are amazing
    Sir please make more videos of geography for class 9th
    I watched your video of geography class 9 and it was just amazing explaination and not only geography, videos for chemistry , physics , Biology , expeiments and mathematics were amazing

  • @NehaKhan-bz6kv
    @NehaKhan-bz6kv 2 года назад

    Es se pahle maine itni behtareen video kabhi nahi dekha...

  • @explanationbyshiv1107
    @explanationbyshiv1107 7 месяцев назад

    Today my 11 years old son asked...why - x - = + , he knows mathematical it is a concept but how can we explain it. And i have got the answer from you Sir. Thank you 🎉

  • @najeebullah1288
    @najeebullah1288 3 года назад

    🆗.....It means we have to rotate it by 180°, brilliant Sir....💕

  • @rajanigirish3758
    @rajanigirish3758 Год назад

    Very well explained, got good clarity to explain to my students. Thank you sir

  • @Mrudul_More
    @Mrudul_More Год назад

    Amazing sir!
    I never even imagined this answer thanks for such a great explaination

  • @anjusaraswat9584
    @anjusaraswat9584 2 года назад

    Sir Apke basic concept bahut hi conceptual hote hai

  • @Subhamaym06
    @Subhamaym06 2 месяца назад

    The best Explanation of this confusion I have seen ever ❤

  • @rakeshmishra5766
    @rakeshmishra5766 Год назад +13

    Video starts 7:20

  • @rahulbharti5108
    @rahulbharti5108 3 месяца назад

    Sir bahut dino se is sawal ka jawab dhundh raha tha ,
    Aaj satik jawab mil gaya
    Thank you very much sir
    Maine aapka channel subscribe kar diya hai

  • @ManojKumar-vn9cs
    @ManojKumar-vn9cs 2 года назад

    Really sir 🙏..... Bhut bhut achha video h sir.... Sare confusion dur ho gye.... Sir yek bat bolu mai n aapka sbhi video dekhta hu jab bhi koi doubt hoti h to... Or video se doubt clear hota hi nhi ... Thank sir 🙏🙏

  • @mdtaha7951
    @mdtaha7951 2 месяца назад

    Really you are a great teacher of science and maths

  • @AlwaysASeeker
    @AlwaysASeeker Год назад

    Same concept comes into my mind for same problem...

  • @15thdece
    @15thdece 3 месяца назад

    Very nice explanation. After 6o yrs . I came to know.

  • @riteshpandey8586
    @riteshpandey8586 3 года назад +3

    Sir maja aa gaya
    Sir ham LCM and HCF kyun nikalte hai?

  • @aneekdebnath8068
    @aneekdebnath8068 Год назад +1

    Hats off.. any class 5th student can understand this 😊

  • @special2747
    @special2747 Месяц назад

    This makes so much sense now .! Thank you very much sir

  • @Shan92836k
    @Shan92836k Год назад

    Sir I can see your sweats sir .hats off to this person you have explained well ❤ btw I'm in class8

  • @Ds8479
    @Ds8479 3 года назад

    You are true legend. Make such kind of videos. God bless you. 🙏🙏

  • @Shahrukhkhan-bi2sg
    @Shahrukhkhan-bi2sg 2 года назад +2

    Sir i am very confused about the concept of posotive and negative work.We know that when we throw an object upward then we applied the force on object in upward direction and body also moves in upward direction so in this case the work must positive but in text books it is mention that work done will be neative in this case.Sir plz explain this misconception.i will be very thankful to you sir❤❤

    • @edupoint.secondary
      @edupoint.secondary  2 года назад +2

      Concentrate on 'who' is doing the work.....
      You or gravity or any other source.

  • @keshavarya822
    @keshavarya822 3 года назад +2

    Sir your this series is very helpful 🤗🤗

  • @manoranjanmishra5781
    @manoranjanmishra5781 Год назад

    Thanks sir.after a long-term I clear this concept

  • @Engr9253
    @Engr9253 2 месяца назад

    Nice way of explaining, good for the confused students as well as teachers.

  • @stealthragnarr2644
    @stealthragnarr2644 10 дней назад

    Agar aapke jaise teachers mujhe mile hote to IIT ke hi kisi college me hota, Hamesha bekar teachers mile na guidance mili na kuch mila.... Kismat hi nhi thi... Anyways thanks for this explanation

  • @anuragagrawal473
    @anuragagrawal473 3 года назад +4

    sir why sum of all natural no upto infinity is -1/12

  • @aakashgupta2816
    @aakashgupta2816 Год назад

    Sir you are great aap hamare liye inspiration hai..

  • @discoveryofphysics9303
    @discoveryofphysics9303 2 года назад +2

    Most beautiful explanation... The negating concept ❣️

  • @WTDFREEFIRE
    @WTDFREEFIRE 3 года назад +1

    Sir
    Why the products of photosynthesis and respiraton can not be obtained by chemical reaction

    • @WTDFREEFIRE
      @WTDFREEFIRE 3 года назад

      @@bikanaevents4014 Mai kah Raha hu

  • @ashusharma7223
    @ashusharma7223 Месяц назад +1

    Sir when you solve -2×-2 it becomes -(-4) which is equal to -1×-4 which is as -2×-2

  • @bikashmohanty3950
    @bikashmohanty3950 3 года назад +2

    Pranam sir, what a lovely funda you have applied sirji!!!!. very nice sir. Please make more videos like this, very interesting.regards.

  • @Yuvrajsingh-3ub
    @Yuvrajsingh-3ub 3 года назад +1

    Question : Any Object Other Than Mirror Scatters light in Different Direction Then How Can Our Eyes Able To see This ... As It Doesn't Fall on our Eye Directly

  • @siddharthajain5356
    @siddharthajain5356 2 года назад

    Sir, Maza aa Gaya! Aapko bahut bahut dhanyavad! 🙏

  • @motiot1073
    @motiot1073 10 дней назад

    Anamoly of Mathematics....
    When negative 2 has to be added twice negatively, (-2 x -2), then the journey on number line would be 0 to -2, then -2 to 0 then 0 to +2.
    It can not be +4.

  • @mrunal1099
    @mrunal1099 2 года назад

    Sir your teaching skill is OP

  • @vaibhav6472
    @vaibhav6472 Год назад +1

    Love you sir ❤❤❤and love your smile jindagi mein app se AK baar milna hai ❤

  • @Dangogaming
    @Dangogaming 3 года назад +2

    Fabulous way of teaching 😊

  • @omkarnath4421
    @omkarnath4421 3 года назад +2

    Hello sir, it is a good explanation
    ...

  • @novaresearchcentre4466
    @novaresearchcentre4466 3 года назад +2

    Sir ,
    What is actual meaning of time , and why C=Frequency*Wavelength ? Is flow of protons possible , can we make any proton move , if yes then what will be the difference between electric and proton current ? Can electric current flow in vacuum through any conductor .

    • @edupoint.secondary
      @edupoint.secondary  3 года назад +3

      Professor Rama,
      You know much more than me.

    • @novaresearchcentre4466
      @novaresearchcentre4466 3 года назад

      I really apologise for my mistake sir , I have realised my mistake sir , please forgive me , you're one of my best Physics teacher , I did that only because you could see my doubts , nothing more than that , please take my doubts sir 🙏🙏🙏

    • @novaresearchcentre4466
      @novaresearchcentre4466 3 года назад

      @@edupoint.secondary My future aim is to be world's best scientist , that is why I tagged myself Prof. You're one of my inspiration , being honest my doubts are cleared so far from your incomparable lectures and video series that no one can provide without any dollars , please forgive me sir , I didn't do that intentionally , I wanted to know their answers only

    • @novaresearchcentre4466
      @novaresearchcentre4466 3 года назад

      Sir please *infinite solve my doubts sir , I want to learn more

  • @nkitydv
    @nkitydv 3 года назад +1

    Sir why we take carry during addition And subtraction

  • @WTDFREEFIRE
    @WTDFREEFIRE 3 года назад +1

    Like sir co2 + H2O= C6H12O6 +O2
    Sir this happens in only PL why we can not obtained the products like glucose and oxygen by chemical process in lab

  • @dibyajyotibiswas122
    @dibyajyotibiswas122 3 года назад +2

    Sir if positive charge annd neggative charge exist, and we knnow thatt charge is linkked with the mass ,, tthenn why not -ve mass exist??????

  • @mridulnath2468
    @mridulnath2468 3 года назад

    Concept really clear thank you sir

  • @sheraz873
    @sheraz873 3 года назад +2

    Sir can you please make a proff tha
    factorial of 0 is 1
    0!=1?

  • @killyta1927
    @killyta1927 3 года назад +2

    🧐🧐u r ginius sir app kha thy gyani baba 👍👍👍👍👍

  • @inmemorialofrio2561
    @inmemorialofrio2561 2 года назад +1

    Thanks you sir, great explanation!!!

  • @purnendumishra4915
    @purnendumishra4915 2 месяца назад +1

    Sir, नंबर लाइन पर तो आपने बहुत ही अच्छा समझाया लेकिन अगर हम गुना की परिभाषा से इस बात को सिद्ध करना चाहे की multiplication उसका repetitive sum होता है. As 2×3=2+2+2, then -2×-2=?

  • @shadabsiddiqui363
    @shadabsiddiqui363 3 года назад

    Sir you way of teaching is well

  • @Abhi-pk7jf
    @Abhi-pk7jf 2 года назад +1

    Sir magnitude of displacement negetive ho sakta h kya

  • @sipaheelal4037
    @sipaheelal4037 3 года назад +2

    sir can s=1/2 vt can also use as eqaution of motion sir if possible then why we can not use this eqation.
    if we do not change v-u=at then s=1/2vt. sir plz tell

  • @KartikSharma-ln8rz
    @KartikSharma-ln8rz 3 года назад +1

    Love u sir bhaut badiya pdhatey ho aap

  • @dtoudalguri7009
    @dtoudalguri7009 2 года назад +1

    There is nothing.... First multiply ✖ the two numbers by not observing sign.. Then if you see there any - negative sign then the product will obviously negative. This is simple... Nothing to worry

  • @manmeetsirfanclub9528
    @manmeetsirfanclub9528 3 года назад +2

    How 2 comes if there are infinite numbers after 1??????????
    Sir please 🙏🙏🙏🙏🙏
    reply

    • @darnasir6491
      @darnasir6491 Месяц назад

      Because they are not whole numbers

  • @SameerMauryaOp
    @SameerMauryaOp 3 года назад +1

    What happens to oxygen in vaccum Or any other gas will it break or collide?

  • @sumantiwary7807
    @sumantiwary7807 3 года назад +1

    Thank you so much sir 🙏👍👍👍👍👍

  • @suneetisharma5331
    @suneetisharma5331 Год назад

    amazing sir after lot o search finally got here .. thanks

  • @kamleshpoddar7712
    @kamleshpoddar7712 2 года назад

    Thank you, sir.....for explaining....

  • @muraribaral8773
    @muraribaral8773 Месяц назад +1

    can you prove it arithmetically ?

  • @ashwanikumar8105
    @ashwanikumar8105 3 месяца назад +1

    Really Fantabulous!

  • @Inspirator_AG112
    @Inspirator_AG112 2 года назад +5

    That is because -1 and 1 are their own reciprocals.
    x = 1/x
    x² = 1
    x = ±1

  • @tarunmukherjee9826
    @tarunmukherjee9826 2 месяца назад

    Brilliant explanation.Thank you sir.

  • @tooktech
    @tooktech 2 месяца назад +1

    2 × 2 के logic के हिसाब से 2 x -2 को कैसे explain करेंगे , अगर संभव नहीं तो फिर, चिन्हों का गुणा तो वैसे भी सभी को याद है ।

  • @SuperSridar
    @SuperSridar 3 месяца назад

    We need youtubers like u . ❤

  • @justanoob2942
    @justanoob2942 3 года назад +1

    Sir what is the use hcf and lcm in real life.. Explain with Real life problems ...plsss

  • @sanjaysurya6840
    @sanjaysurya6840 Год назад

    Crisp clear explanation 💯👍

  • @awesomeworld557
    @awesomeworld557 3 месяца назад

    -ve is equal to 180 degree rotation on the line 😊

  • @kuldeepaggarwal4314
    @kuldeepaggarwal4314 2 года назад

    Sir plz teach scientific reason behind BODMAS rule of maths.

  • @hbgondal
    @hbgondal 2 месяца назад

    Great.. mashaaAllah...bohat zaberdast method....