Number System 02 | Real Numbers and their Decimal Expansion | Class 9 | NCERT | Sprint

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  • čas přidán 4. 01. 2021
  • Scheduled Syllabus For Sprint ( Class 9th ) released describing :-
    which topics will be taught for how many days.
    Available at PhysicsWallah App/Website.
    📲PW App Link - bit.ly/YTAI_foundation
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    Duration:-1 month (Jan 2021 - Feb 2021)
    Free Batch Exclusive on our CZcams Channel : Physics Wallah Foundation - 9 & 10
    Batch Details
    1)Best Faculties across India for different Subject/Topics.
    2)Complete & Relevant Syllabus Coverage of Class-9th within 1 Month- Fastrack Jan 4,2021-Feb 15,2021
    3)Monday-Saturday : Scheduled Classes everyday ( for each Physics, Chemistry,Mathematics , Biology and SST)
    Physics : Tues, Thurs, Sat
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    Mathematics: Mon, Tues, Wed, Thur , Fri, Sat
    Biology: Wed , Thur , Sat
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    4)Scheduled Syllabus released describing :-
    which topics will be taught for how many days.
    Available at PhysicsWallah App
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Komentáře • 2,5K

  • @PW-Foundation
    @PW-Foundation  Před 3 lety +428

    Scheduled Syllabus For Sprint ( Class 9th ) released describing :-
    which topics will be taught for how many days.
    Available at PhysicsWallah App :bit.ly/2SHIPW6
    Duration:-1 month (Jan 2021 - Feb 2021)
    Free Batch Exclusive on our CZcams Channel : Physics Wallah Foundation - 9 & 10
    Batch Details
    1)Best Faculties across India for different Subject/Topics.
    2)Complete & Relevant Syllabus Coverage of Class-9th within 1 Month- Fastrack Jan 4,2021-Feb 15,2021
    3)Monday-Saturday : Scheduled Classes everyday ( for each Physics, Chemistry,Mathematics , Biology and SST)
    Physics : Tues, Thurs, Sat
    Chemistry: Mon , Wed , Fri
    Mathematics: Mon, Tues, Wed, Thur , Fri, Sat
    Biology: Wed , Thur , Sat
    S.ST : Mon, Tues, Wed, Thur , Fri, Sat
    4)Scheduled Syllabus released describing :-
    which topics will be taught for how many days.
    Available at PhysicsWallah App :bit.ly/2SHIPW6
    Physicswallah Instagram Handle : instagram.com/physicswallah/
    Physicswallah Facebook Page: facebook.com/physicswallah
    Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20
    Physicswallah App on Google Play Store : bit.ly/2SHIPW6

  • @akhileshtripathi8356
    @akhileshtripathi8356 Před rokem +211

    17:03 shows the struggle of sir how he prepares the video for us hats off to sir

    • @scrat_mine
      @scrat_mine Před rokem +11

      True

    • @CARGO_DEVIL
      @CARGO_DEVIL Před rokem +1

      True

    • @uditchauhan1095
      @uditchauhan1095 Před rokem +2

      Being a Mathematics Teacher, I can totally relate to this. Great Work brother. 😄😄

    • @TheMonarchAccount
      @TheMonarchAccount Před rokem +1

      @@uditchauhan1095 Nah You Are Student Stop Lying

    • @uditchauhan1095
      @uditchauhan1095 Před rokem +1

      @@TheMonarchAccount Being a teacher, I never lie. I am Math's faculty at Achievers Point.

  • @vedantmahajan9634
    @vedantmahajan9634 Před 3 lety +86

    Love it when you ask the question to yourself and then answer it. Please continue doing that in the next classes too

  • @kashish303
    @kashish303 Před rokem +155

    I used to hate maths before
    But after watching your videos I love maths 😅
    Thank you so much sir 😊

  • @aditichauhan57
    @aditichauhan57 Před rokem +34

    I Thank you so much for your efforts, sir. You have no idea what it means for me and and the millions of students you are teaching through your videos. people like you are worth a fortune. Thankyou so much.

  • @vishvrajbhadauria4737
    @vishvrajbhadauria4737 Před 3 lety +139

    17:03 sir ne hisare Mein kaha Yaha pe video cut kar dena editor forgot it😁😁😁😁😁😃😀

  • @mukhtaralam886
    @mukhtaralam886 Před 3 lety +202

    Sir, your video spread faster than corona 😷 virus

  • @rtedits2217
    @rtedits2217 Před 2 lety +180

    I'm so blessed to find this channel. I came to 9th and felt the teacher's don't teach properly. That time i tried searching many channel but now I finally found it 😊. Rakshak sir and this sir and alakh sir is my favorite. Thank you for making awesome videos.

  • @HARSHTRIPPIN
    @HARSHTRIPPIN Před rokem +141

    I like how he gets confuse but still manages to continue the video 😂💖

  • @AnuragYadav-lc7ks
    @AnuragYadav-lc7ks Před 3 lety +13

    जीवन में अच्छे अधायापक और कुछ अच्छे , अनुभवी मार्गदर्शक का सही समय पर साथ मिल जाए, तो जीवन के हर मुकाम को पाने में ज्यादा कठिनाई नहीं होती।
    Thank maths sir❤️
    Thanku alakh sir 👍🏻

  • @kundlikgawade8837
    @kundlikgawade8837 Před 3 lety +28

    All teachers have inspirty no one look sad good teaching. GOD BLESS ALL OF YOU

  • @ConfidentGamerz
    @ConfidentGamerz Před rokem +17

    Homework given by Sir:
    25:34 (1) 0.32 = 32/99
    1:12:38 (2) find to irrational number between 0.158 and 0.16 = 0.159632, 0.159743

  • @udaypratapsingh191
    @udaypratapsingh191 Před 2 lety +7

    Sir i have no words for you
    You are the best maths teacher which i seen .

  • @shlokneema
    @shlokneema Před 3 lety +73

    These students have awesome teacher

  • @exterkillinnit3791
    @exterkillinnit3791 Před 3 lety +70

    Protip: When the denominator is 7 . The divison will start repeating after 6 digits for example if you divide 10/7 , it will start repeating after 6 digits for sure.

  • @jnvudaipur8844
    @jnvudaipur8844 Před 2 lety +42

    "This teacher has awesome students " written on his sweatshirt .....soo true
    You have awesome teaching skills

  • @aryankewata1415
    @aryankewata1415 Před 2 lety +11

    I am really glad to study from you I am in 9th class now my stress has been gone to pass out 9th class with good good marks your teaching style and method are good I understand it easily I don't want to find coaching anywhere thank you mister physics wallah

  • @princejakhmola6076
    @princejakhmola6076 Před 3 lety +10

    Thank you sir amazing teaching . Sir app tension mat liziya app bhoot achha pada raha hai .👍👍🤩🏆

  • @shardajha3970
    @shardajha3970 Před rokem +12

    Sir you have left a point that in terminating number, in the form of p/q the denominator i .e q has no other factor than 2 and 5.😊

  • @arundhati553
    @arundhati553 Před 2 lety +50

    I love your teaching style, sir! I was focused during the whole class and it really surprised me because I usually have a hard time focusing on something.

  • @gamsterrk6336
    @gamsterrk6336 Před rokem +12

    I love the hard work of this teacher. Not only of him but of every teacher

  • @gauravverma196
    @gauravverma196 Před 3 lety +11

    16:56 to 17:20 wo bahaut funny tha. "sir kyo pagal bana rhe ho"!!

  • @ujjwalrocks6806
    @ujjwalrocks6806 Před 3 lety +43

    Sir aap cut wala scene cut karna bhul gay😅btw sir u are awesome

  • @parth_sharzz
    @parth_sharzz Před 2 lety +6

    Q=Why 0.9bar is equal to 1
    A=Because there is ultimately no room between 1 and these numbers, the point 1 must be this least point, and so 0.999... = 1.

  • @prakashjain3313
    @prakashjain3313 Před rokem +4

    You are amazing sirrrr. Plss keep on teaching sir.. your teaching methods are woww. And we all students love you and physics wala foundation... Students need teachers like you even in the school. School teachers don't teach in the manner you teach. I just love your teaching... Thankyou sirr

  • @dakshrishi6863
    @dakshrishi6863 Před 3 lety +82

    Sir you are really an amazing teacher. I also sometimes forgot the lines in between as you did but you handled That is very good manner. It is very difficult to learn this much long script and all the teachers are doing this for us. Thanks a lot to all the teachers of physics wallah

    • @mukeshsoni1859
      @mukeshsoni1859 Před 3 lety +25

      Are bhai they don't learn it's not a script vo to bas apni slides banakar thoda sa prepare karte hain baki to khud on the spot bolte Hain
      Hats off to all the teachers ❤️

    • @craftydivya1682
      @craftydivya1682 Před rokem +1

      they don't learn the script. The words are their own. They're the best teachers in this world.......

    • @satishagrawal8377
      @satishagrawal8377 Před rokem

      Sir 42/100 pls

  • @swetasingh2086
    @swetasingh2086 Před 3 lety +63

    Earlier this whole chapter was very boring for me but after attending your class, my view towards this chapter is totally changed.
    enjoyed a lot, Whole scenario is totally changed from physics wallah foundation group.

  • @karansingh3981
    @karansingh3981 Před 2 lety +7

    Sir no words to say. You are awesome ☺️

  • @ayushirai7471
    @ayushirai7471 Před 2 lety +4

    Sir you are outstanding 🔥thank you so much 😊

  • @rizwanakaushar5265
    @rizwanakaushar5265 Před 3 lety +6

    You are the best teacher of math ❤️

  • @ashokmehta4557
    @ashokmehta4557 Před 3 lety +11

    This teachers has awesome students😊😊😊😍😍love uuh sir ji😆😜😛😍😍

  • @bhumikshaingole8399
    @bhumikshaingole8399 Před 2 lety +3

    1:00:46 yes 0 raised to the power 0 is always 1 (0^0=1)

  • @vaidehiyadav6188
    @vaidehiyadav6188 Před rokem +2

    I am blessed to find this channel.

  • @SanjuDevi-hy2zd
    @SanjuDevi-hy2zd Před 2 lety +4

    Sir you are amazing you are my inspiration and ideal of my life 😊😊😊😊😊

  • @aksharabajpai683
    @aksharabajpai683 Před 3 lety +591

    Sir beech beech me video cut karna bhool gaye 🤓

  • @Himadri560
    @Himadri560 Před rokem +10

    I used to hate maths before but after attending your lectures my view towards maths is totally changed😊Thank youu soo much sir for your wonderful explanation..... Hats off❤😇

  • @picxofyy3351
    @picxofyy3351 Před 2 lety +6

    hw answers:-
    0.159,0.1591
    thanks for video sir
    really helped me

  • @sarajain_007
    @sarajain_007 Před 3 lety +19

    This is the best tutorial ever!!!!!!!!! Thanks a lot Sir :):)

  • @dhanigoyal2011
    @dhanigoyal2011 Před 3 lety +3

    Thanku sir I can understand all the question

  • @zoyaalvi9249
    @zoyaalvi9249 Před 2 lety +1

    sir thanks a lot for make this video and also thanks to physics wallah

  • @nishi796
    @nishi796 Před rokem +1

    Thank u sir to clear all my doubts

  • @mickeycreation4106
    @mickeycreation4106 Před 3 lety +12

    25:40 answer is 32/99

  • @priyanshichandra4908
    @priyanshichandra4908 Před 3 lety +3

    Thanku sir for the easiest explanation 😃

  • @nitusingh3865
    @nitusingh3865 Před 2 lety +2

    Thanks a lot sir ....now I am interested in maths

  • @tanishqwadekar8519
    @tanishqwadekar8519 Před 2 lety +2

    I am watching this video before one day of exam . And it's very help full for me , thankyou very much sir .

  • @Amankumar-pf9zu
    @Amankumar-pf9zu Před 3 lety +7

    Yaar teacher kaha se le aaye hai bhai itna accha padte hai yaar aise teacher har ek school main ho toh humara desh kaafi develop ho jayega

  • @yashikatyagi3905
    @yashikatyagi3905 Před 3 lety +3

    Very nice sir ❤️🙏😊
    Thanks a lot 😊❤️🙏

  • @harshit-ul2zl
    @harshit-ul2zl Před rokem +2

    1:12:39 Sir done 🤝🏻 both question

  • @cazainabnaqvi
    @cazainabnaqvi Před 5 měsíci

    I'm watching this video for my sister to teach her ..and i must say u r the best teacher ..i understand whole concept in one go ..thank u soo much sir ❤

  • @PREMSHANKAR-nd5iy
    @PREMSHANKAR-nd5iy Před 3 lety +4

    Sir aapse pdhkar hmlogo ko bhut jyada hi achha lg rha hai...

  • @ankushgoswami3119
    @ankushgoswami3119 Před 3 lety +3

    Your teaching is best sir ❤️

  • @darneja
    @darneja Před rokem +1

    I like the way he is so punctual about the time he is watching his watch again and again
    People who are punctual are very successful

  • @saniyaafreen2320
    @saniyaafreen2320 Před 2 lety +2

    Thank you so much sir you are the best math teacher ✨

  • @ajiteshgarg7557
    @ajiteshgarg7557 Před 3 lety +18

    sir your explanation is outstanding !!! you are wonderful .... also there is no faaltu promotion of any paid course throughout the video

  • @ayushkumarpandey4169
    @ayushkumarpandey4169 Před 3 lety +3

    Very good teaching sir I am understanding all the topics very clearly it is very now to understand maths for me and i think all of you are also understanding
    KEEP IT UP SIR😀😀😀😀🙂

  • @Pluto_king
    @Pluto_king Před 2 lety +1

    Thank u very much sir aapne bhut aacha explain kiya bich me samajh nhi arha tha prr jab solve kiya to bhut easy lag rha🙏🙏

  • @neetuverma8814
    @neetuverma8814 Před rokem +10

    Thanks Sir for your Best explanation and clarity of the concept...May I request you to please explain y irrational no is as you categorize it as non repetitive as you illustrate the example of 22/7

  • @mangatech1358
    @mangatech1358 Před 2 lety +3

    Sir i helped me too much to flex between my cousions and classmates 😁😁 that you teach to represent root 11 on no. Line q🤩🤩🤩

  • @bhavishyagoswami711
    @bhavishyagoswami711 Před 3 lety +30

    Another method to solve this question.
    5x+ 5x+1= 150
    5x+5x+1= 5 square + 5 cube.
    Both fives on both sides gets cancelled.
    Remaining portion,
    x+x+1= square + cube
    x+x+1=2+3
    x+x+1= 5
    2x+1= 5
    2x= 4
    x = 2.
    Finished. Thanks.

  • @noneofyourbusiness2263
    @noneofyourbusiness2263 Před rokem +2

    This teacher has amazing teaching 👏👏

  • @romanfansclub6199
    @romanfansclub6199 Před rokem +1

    Thankyou so much sir ❤️

  • @RavindraKumar-gy2ev
    @RavindraKumar-gy2ev Před 3 lety +3

    Thanku a lot sir....
    And teams of physics wallah 🙂

  • @kumkumsahu5745
    @kumkumsahu5745 Před 3 lety +3

    Sir if we have to represent the square root spiral in negative line then how we have to represent that
    Example - root -2,-3,-5 and etc

  • @aditibisht1757
    @aditibisht1757 Před 2 lety +2

    Amazing sir your Teaching method is fabolus 😊😊😊

  • @mann123.
    @mann123. Před 2 lety +2

    Sir as per your homework let's take a irrational number 4+√3 and other 5+√3 ans will be rational and 4+√2*5+√3 will be irrational

  • @monapatel2735
    @monapatel2735 Před 3 lety +7

    30:05 sir aapki is smile se mujhe bhi hasi aagyi 😂😂
    Sir reason ye hai ki 0.9 bar is appx.equal to 1
    Sir (√2)² is 1.999999.. which is appx. Equal to 2 and we consider it

  • @sahilraj1379
    @sahilraj1379 Před 3 lety +9

    Hoorah we reached 100k 🤩🤩🤩🤩🤩🤩🤩🤩

  • @rajendra.thakur9566
    @rajendra.thakur9566 Před rokem

    Thanks you sir after seeing this view I understand this chapter easily and better than other teachers

  • @Aaayuush1034
    @Aaayuush1034 Před 2 lety +2

    I can say physics wallah teachers are great. Specially Mathematicians.

  • @asmitayadavk
    @asmitayadavk Před 2 lety +15

    Sir told the person to cut the Clip but he uploaded video without Editing 🤣 But I must say Sometimes it Happens because they are also Human not God....
    But overall this Video was very Helpfull....Thank you Sir 🙏

  • @byomthakur3374
    @byomthakur3374 Před 3 lety +6

    Sir actually my favourite teacher.❤️❤️❤️❤️❤️Really SALUTE🙏🙏

  • @honeyxop8513
    @honeyxop8513 Před rokem

    Very nice Explanation sir i got all my concepts cleared 🖤

  • @Armanfree-p5b
    @Armanfree-p5b Před rokem

    Very good explanation and very nice teacher this is very helpful to me for tommorow test

  • @nexengamer7
    @nexengamer7 Před 3 lety +4

    1:00:55 0⁰=1, Because the rule is variable will always be whole number, so it doesn't matter if we write A⁰=1 or 0⁰=1 both should remain same.Right?

  • @monikakumari739
    @monikakumari739 Před 3 lety +4

    Sir answer of que 0.32 bar is 32/99 and 0.9bar =1 this because it is rational no. That is non terminating but repeating not sure about the second answer
    Thank u sir 🙏

  • @RPjangid132
    @RPjangid132 Před 6 měsíci +2

    Thanks sir its so useful for me u just solved my all doubt ,I'm so weak in maths 😅 💜💜

  • @dharamraj6684
    @dharamraj6684 Před rokem

    Mohit poonia sir is OP after watching sir explanation video maths is seems like a easy and it's understand quickly....
    THANK YOU A LOT SIR FOR CLEAR US ALL DOUBT....✌👏

  • @mickeycreation4106
    @mickeycreation4106 Před 3 lety +26

    😊😍Sir you teaches very amazing and fantastically. Your voice is full of motivation and joy.🥰😋😎

  • @bestmeme69696
    @bestmeme69696 Před 3 lety +12

    Sir, I have a doubt that in questions for the laws of exponent in the first question shouldn't we divide the bases means subtract first then multiply means addition

    • @prt4691
      @prt4691 Před 3 lety +2

      Bhai time stamp bata do

    • @rashimaan6279
      @rashimaan6279 Před 3 lety +3

      Yes u can do that but this one is the easier way to solve so that's why sir had used this one.

  • @bealwayshappy7476
    @bealwayshappy7476 Před rokem +1

    Plz tell i m. Very much confused in non terminating bt repeating in which we have to represent it in p/q form

  • @Cocabunny333
    @Cocabunny333 Před 6 měsíci

    Mind blowing teaching sir hats off to you thank you so much for coming in our lives ur the best teacher ever 🙏😊😊

  • @-ShReysh-
    @-ShReysh- Před 3 lety +3

    He pw team 💥 I want to ask you that 😂😅 starting me hello baccho kon bolta he sari videos me
    Me guess= alak pandey sir💥💥💥

  • @poonamrawatale3578
    @poonamrawatale3578 Před 3 lety +3

    Thank you so much Sir.........you are great and wonderful teacher...and ur explanation is amazing.....😀

  • @Dimpalsrivastava17
    @Dimpalsrivastava17 Před rokem +2

    0.9 (bar) is equal to 1 because nine is going on repeating so it is being rounded off

  • @weirdandwacky9320
    @weirdandwacky9320 Před rokem +6

    This is the first channel which I found easy to understand for myself

  • @user-bv6wx5bx6l
    @user-bv6wx5bx6l Před 3 lety +5

    Sir, these classes is better than online classes.😁😁😁

  • @nurulhasan8032
    @nurulhasan8032 Před 3 lety +6

    Thank you very much sir. You teach very well and we understand maths very interesting and easy way.

  • @Suryakumaryadav18311
    @Suryakumaryadav18311 Před 9 měsíci

    0.9^- is 1 because if we divide 1by3 then we got 0.9999999 Which is repeating so, we can write it as 0.9^-
    Hence,0.9^-=1

  • @REVIEWWALA201
    @REVIEWWALA201 Před 2 lety +3

    TRUST ME YOUR ARE A BEST TEACHER EVER 🤩🤩 😘

  • @starstyletailor9923
    @starstyletailor9923 Před 3 lety +7

    I got full 20/20(means full 100%)in math UT always after 7th class

  • @nikhilgrewal1477
    @nikhilgrewal1477 Před 3 lety +4

    Sir well explained keep it up

  • @suvarnakolekar5206
    @suvarnakolekar5206 Před rokem +1

    Sir your concepts are so usefull 👌👌

  • @husan_kaur7876
    @husan_kaur7876 Před rokem +1

    You are the best ever teacher sir love u are my real teacher 💞,🙇🙇🙇🙏🙏🙏

  • @Sana-qx7tc
    @Sana-qx7tc Před 3 lety +10

    Question no. 3.
    32 bar
    x=0.323232.....(1)
    100x=32.323232....(2)
    (2)-(1)
    99x=32
    x=32/99.
    Hence,the required answer is 32/99.

  • @seetaraamprasad9113
    @seetaraamprasad9113 Před 3 lety +6

    Sir you are a very *awesome* and *splendid teacher* which I never been seen before.😎😎🎉🎉🔥🔥

  • @satishprajapati9779
    @satishprajapati9779 Před 2 lety +2

    Best teacher ever I am enjoying

  • @ankurchaturvedi1286
    @ankurchaturvedi1286 Před 2 lety +1

    Sir you are great teacher no doubt but sir you cannot explain deeply but thank you sir to give us your precious time

  • @krutikammohanty3465
    @krutikammohanty3465 Před 3 lety +7

    Sir apne ×100 karke 1000 kiya aur phir 10 se subtract kyun kiya I have this doubt in question no.4 in 28:46 sir can you pls solve this doubt

    • @salaammaleykum681
      @salaammaleykum681 Před 2 lety

      Bcz we should be able to subtracte the repeating numbers

    • @aman98822
      @aman98822 Před 2 lety

      Bhai mixed repeating sawaal tha to pehle pure repearting bnaya tha na to value 10 aayi thi, fir use solve kiya to 1000x aaya, to eq2-eq1= 1000x-10x hua

  • @shivanichoudhary7469
    @shivanichoudhary7469 Před 2 lety +3

    Sir loved it 🖤
    Superb

  • @jawasingh7665
    @jawasingh7665 Před rokem

    just loved the method of teaching