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

[@PW-Foundation]

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 KZbin 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

[@santoshprasadnag411]

Sir ap live kb ayoge

[@santoshprasadnag411]

Please solve ex 1 .4

[@pearl_yyy]

Sir ji timing bhi bata do

[@adityaprataprajput2830]

Please sir make circles

[@mickeycreation4106]

Sir please schedule batado😎

[@akhileshtripathi8356]

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

[@scrat_mine]

True

[@CARGO_DEVIL]

True

[@uditchauhan1095]

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

[@TheMonarchAccount]

@@uditchauhan1095 Nah You Are Student Stop Lying

[@uditchauhan1095]

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

[@vedantmahajan9634]

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

[@ConfidentGamerz]

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

[@itsdaxHT3NTHPOT]

Nice brother😊

[@ConfidentGamerz]

@@itsdaxHT3NTHPOT Thanks

[@saritamishra4227]

​@@ConfidentGamerz You should be in pinned comment ❤

[@kashish303]

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

[@Rajaab.family94]

Good

[@rudramishra237]

Good

[@prahladjat7777]

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

[@noobdevesh5722]

But after seeing pk garg😢

[@GuddusomRajput]

​@@noobdevesh57223:47

[@rtedits2008]

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.

[@tannukhan1957]

Yes me too😊😊

[@abhaypratapsingh873]

Yes me tooo

[@madhusaini1599]

Yessssss meeeeee toooo 🖤🖤🖤

[@behappy8670]

Improve your grammar.

[@namitapanigrahi8807]

Yes me too

[@kundlikgawade8837]

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

[@mukhtaralam886]

Sir, your video spread faster than corona 😷 virus

[@kusumpandey6134]

Hehehe

[@biography23]

Waah

[@inderrajsharma6944]

Really yrrr😅✌️

[@priyanshu7586]

Yes you are right

[@Чинмей]

Aba 57 thousand views hi to hai 😞

[@AnuragYadav-lc7ks]

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 👍🏻

[@HARSHTRIPPIN]

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

[@Spark__169]

😂

[@itsdaxHT3NTHPOT]

He doesn't gets confused Use brain cuz speaking and standing in front of camera for 1 hours 13mins isn't a joke 🤨😑

[@Spark__169]

@@itsdaxHT3NTHPOT truth

[@itsdaxHT3NTHPOT]

🙃

[@itsdaxHT3NTHPOT]

1hour *

[@jnvudaipur8844]

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

[@PravinAnantulwar-yt7vn]

Hey dear... I am also JNV STUDENT from Maharashtra JNV CHANDRPUR ❤❤

[@shlokneema]

These students have awesome teacher

[@vaibhavkadam1439]

Are u not included in it

[@s-setgamer611]

Yes

[@Sana-qx7tc]

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.

[@Himadri560]

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❤😇

[@aditichauhan57]

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.

[@gamsterrk6336]

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

[@syedzahaan172]

Sir no words to you!!! Outstanding, Fabulous, Excellent Sir!!!! Hats off to you

[@vyasprasad8517]

Shi baatain

[@Vkanu-edits]

21 topo ka salami 💁

[@unicorn3136]

Yes sir

[@vigerousboys9333]

12 bar namaste sir

[@vishvrajbhadauria4737]

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

[@basantidevi629]

😄😄😄👍

[@dhireshsingh199]

Yes you are right 😀😂😂😂😎❤️👍

[@SushilKumar-hi4sf]

Sasta Editor 😂😂😂

[@Circlescootie]

Sir k editor humesha bhool jata hai😪. Last vdo mein bhi gadbad kee thi usne🤦🏻‍♀️

[@kindofanmol]

it was soo awkard 💀

[@aryankewata1415]

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

[@bhumikshaingole8399]

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

[@harshit-ul2zl]

1:12:39 Sir done 🤝🏻 both question

[@bhavishyagoswami711]

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.

[@ashishraj8106]

galat hai

[@bhavishyagoswami711]

@@ashishraj8106 kaise galat hai ji.

[@aishahashmi2217]

x+x+1= 2x+1 to hogaya lekin 5 = 2 kaise hua??😂

[@ashishraj8106]

apne kam se kam kre

[@PritamSingh-hz7lq]

@@bhavishyagoswami711 sahi hain and thanks for this

[@ashokmehta4557]

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

[@vijaysinghanshu5194]

@Raja Rajpoot ya

[@exterkillinnit3791]

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.

[@ajiteshgarg7557]

it's a very known fact

[@shivanshi2373]

@@ajiteshgarg7557 yes

[@muskaan16]

Thanks for this trip ✨

[@anshikabhardwaj5342]

@@muskaan16 tip*

[@muskaan16]

@@anshikabhardwaj5342 yaa 😅😅 Thanks for corecting ✨

[@aditibisht1757]

Amazing sir your Teaching method is fabolus 😊😊😊

[@parth_sharzz]

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.

[@saranshthakur3365]

Bro we can do it with round off also

[@shivratanlalgupta9402]

@@saranshthakur3365 yes

[@dakshrishi6863]

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]

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]

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

[@satishagrawal8377]

Sir 42/100 pls

[@princejakhmola6076]

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

[@swetasingh2086]

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.

[@justforfun-adi-2288]

🐒

[@nishishrivastawa193]

Hi

[@husan_kaur7876]

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

[@Suryakumaryadav18311]

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

[@PREMSHANKAR-nd5iy]

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

[@sahilraj1379]

Hoorah we reached 100k 🤩🤩🤩🤩🤩🤩🤩🤩

[@gauravverma196]

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

[@beast-ku4ds]

😏😏😏😏

[@amidstsunshine]

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.

[@Lakshyaa10]

Skill issue💀💀( its a joke we made in class lmao) no offence

[@TheMonarchAccount]

@@Lakshyaa10 Lol

[@picxofyy3351]

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

[@udaypratapsingh191]

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

[@byomthakur3374]

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

[@monapatel2735]

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

[@kartunbaba]

Chapu😂😂😂

[@monapatel2735]

@@kartunbaba kya matlab 😂

[@RPjangid132]

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

[@darneja]

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

[@mickeycreation4106]

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

[@marleyeditz7234]

HLO

[@marleyeditz7234]

HLO

[@rsaggrwalmathematics9157]

I am also jnv student

[@rsaggrwalmathematics9157]

Jnv is going to start ❤️❤️

[@Rs12528]

Jara padhai me bhi comment karo sirf taarif me nhi

[@devanshirathore7059]

Reason for 0.9 is equal to 1 Solution; According to rules of estimation if the number to be rounded off is greater than 5 then the preceding digit is increased by 1.

[@ujjwalrocks6806]

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

[@inderrajsharma6944]

Konsa cut wla scene?

[@tasneemfaizi5582]

@@inderrajsharma6944 ye 17:07

[@navya6767]

At 17:02😂

[@noneofyourbusiness2263]

This teacher has amazing teaching 👏👏

[@GovindGK-lo5xb]

Sir your teaching way is very best👍👍

[@Amankumar-pf9zu]

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

[@Amankumar-pf9zu]

@Vandana Gupta par aise teacher milte bhi kam hai

[@Amankumar-pf9zu]

@Vandana Gupta yup

[@anushkatiwari3271]

Maths ÷ Mohit sir =. Full fanda clear Thank u sir !!!! I have already practised this chapter but then too I'm enjoying it . The way sir teach is amazing . ☺️☺️

[@Sana-qx7tc]

Absolutely right✨✨

[@hemantpant1448]

What is exact value of π in form p/q

[@hemantpant1448]

What is exact value of π in form of p/q?? Non terminating or non recurring

[@yashyadav4820]

Hi bhai

[@aksheev]

@@hemantpant1448 non terminating and non repeating

[@meghashingare8783]

14:40 Friends in the above sentence, The number of entries in the repeating string of remainder is less than the divisor. There is little mistake that instead of remainder there is "Quotient". Keep Studying👍🏻

[@vindhywasinivishwakarma792]

there is no word of quotient written in 14:40 plzz see again ❤️❤️❤️

[@vindhywasinivishwakarma792]

But I have seen it somewhere in the lecture 😅

[@subymirza9119]

u should say There is little mistake that instead of quotient there is "Remainder".

[@govindiron07]

@@subymirza9119 yaa !!! ur right 👍👍👍

[@Town.vloger]

Sir I am big hater of maths but after attending your maths is one of my favourite subject hats of sir ❤🎉❤

[@ClassyRishav..]

Sir (I) Homework Ans X=0.32 100x = 32.32 100x-x = 32.32-0.32 99x= 32 x = 32/99 THIS Is My Answer

[@MKGaming-ti9pe]

Thankyou sir for making videos for class 9 😊😊😊

[@krutikammohanty3465]

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]

Bcz we should be able to subtracte the repeating numbers

[@aman98822]

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

[@monikakumari739]

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 🙏

[@romanfansclub6199]

Thankyou so much sir ❤️

[@Pluto_king]

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🙏🙏

[@asmitayadavk]

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 🙏

[@vindhywasinivishwakarma792]

❤️❤️❤️ yaa !!!

[@adityaraj1154]

The viewers should also hit like...as the teachers are doing very hard work and providing quality education free of cost

[@MV-bq5wl]

Pagal hai bolo jata hai ki kya bol raha hai

[@shardajha3970]

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.😊

[@mdmoosalxa5083]

11:23

[@aryanshinde-student19777]

H.w= irrational no. between 0.158 and 0.16 is 0.15863189.................... SIr you are great teacher.

[@satishprajapati9779]

Best teacher ever I am enjoying

[@shreyking1790]

Math me aajtak itni jldi confusion clear ni hua tha aaj to chamatkar ho gya without problem sab solve Thankyou sir 😊😊

[@SanjuDevi-hy2zd]

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

[@sarajain_007]

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

[@MASTER.X.2611]

Ritik sir for a reason❤❤

[@parmindersinghnandal6092]

❤️

[@knowledge6246]

Sir you are the best teacher in the world and physical wallah is the best From byjus and all

[@ajiteshgarg7557]

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

[@pinkymandawara2680]

25:40 The answer of Part (C) is 32/99

[@sakshamrastogi6313]

30:27 it became equal to 1 cause it is the nearest number to 1 in a number line i think so...

[@sakshamrastogi6313]

Yup mera bhi 32/99 aya hai

[@GauravKumar-fc7sr]

yeah,,, same here 32/99

[@kayumansari9857]

My answer questions C 32/99

[@Sandipshejole1]

Right हे vro

[@prakashjain3313]

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

[@khushisoni4932]

❤❤

[@anilojha1361]

Mujhe maths bhut dar lagta tha lekin aapki teaching style se maths accha lagne laga

[@kajalsahu3890]

Best teacher of math

[@sonalsingh1986]

Sir take test 😎 every week Like other batches 🔥🔥🔥🔥🙏🏻

[@saa6390]

Yes it is important to take test🙂👍👍👍👍👍👍

[@STATUSWORLD-p9w]

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

[@rizwanakaushar5265]

You are the best teacher of math ❤️

[@animeislove1403]

0 power 0 is undefined because In a power m/a power n identity if n=m then a power m-n =m-m=0 and it is also = No. Of time a/same no. Of time a = 1 so a power 0 =1 and if we take a=0 then it is also equal to no. Of time 0 / no. Of time zero = 0/0 and it is undefined that what is the answere of divide 0 by 0. For example: a=2 and m=n=4 And a power m is also devided by a power n So means 2 power 4/2 power 4 acording to identity 2 power 4-4 =2 power 0 And it is also equal to 2*2*2*2/2*2*2*2=1/1 =1 So if 2 power 0 is equal to 1 And in similar case if we put a=0 then 0 power 0 is equal to 0*0*0*0/0*0*0*0 =0/0 and we cannot devide 0 by 0 So we conclude that 0 power 0 = 0/0 Hope you understand thank you

[@romanfansclub6199]

Pdhaku baccha😱😱😱😱😱😱😱

[@animeislove1403]

@@romanfansclub6199 thanks

[@A4sRavi]

​@@romanfansclub6199 Abe copy kar ke comment kar Diya hai be

[@romanfansclub6199]

@@A4sRavi Abe saale hme pta h

[@cazainabnaqvi]

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 ❤

[@rishukumartiwari2390]

The meaning of the notation 0.999... is the least point on the number line lying to the right of all of the numbers 0.9, 0.99, 0.999, etc. Because there is ultimately no room between 1 and these numbers, the point 1 must be this least point, and so 0.999... = 1.

[@_Yeagerist]

Bro Samajh nhi aaya

[@RIPTIDE_001]

Dude it's a bit confusing. But I appreciate the effort

[@itsforu..foreverluv5707]

😮‍💨

[@Priya_art40]

google se copy paste😅😅

[@itsforu..foreverluv5707]

@@Priya_art40 😂

[@sachinkr.panditb2094]

Please make video on circle as early . Please, as possible.

[@nimishwadhwa1150]

yes please

[@aishahashmi2217]

Another answer of 1:09:21 5^x +5^(x+1) =150 5^(x+x+1) = 125+25 5^(2x+1) = 5^3+5^2 5^(2x+1)=5^(3+2) This means 2x+1=3+2 2x=3+2-1 2x=4 x=4/2=2

[@RajanKumar-ei1sq]

Sir 0.9 ka value 1 kyu hua Inke beech to numbers hote h infinite jaisa ki aapne btaya tha Average wla formulae se aaram se nikal jaayega Fir iska value 1 kyu hua plz explain sir a+b/2 = 0.9+1/2 = 1.9/2 = 19/20

[@mann123.]

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

[@eaktakumari4506]

Sir ye joo questions aapne batya woo too easily bn gya aapki help se but Rs Agarwal ka questions bht strange type ka h. Ek baar woo v discuss kr dijiye n please

[@voidprod.5642]

Mohit sir the best...mazee aa gaye sir...phle maths ?-yeh thi par ab-!-yeh ho gaya hai...

[@mohit8590]

I Just want to say that KEEP IT UP SIR 🙂

[@pratibhatiwari3988]

Sir i have a doubt in 22:25 sir why you subtracted 1 i cant understand

[@aesthetic_world_20]

Sir meant to say that equation 1 ➖ Equation 2.. first we had x then on multiplying 10 it becomes 10x then according to concept we minis 1 x from 10x hope you understand 😀

[@its_by_dev]

17:03 shows the struggle of the mind

[@satraj2942]

You makes learning as fun for me

[@mickeycreation4106]

25:40 answer is 32/99

[@harbanssharma609]

Yes

[@itz_lexar_7774]

Best part 17:08 😂😂 must watch

[@zoyaalvi9249]

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

[@sreedevijadav1860]

Explained very welllll 🙏🏻👌🏼👌🏼👌🏼

[@REVIEWWALA201]

TRUST ME YOUR ARE A BEST TEACHER EVER 🤩🤩 😘

[@manthankumar3433]

1:06:42 is the best part of the lecture

[@gareebgamer7975]

Yes

[@quazimohdmaaz6086]

Also right the time of videos in description And make channel on telegram for doubts

[@farzankhan4607]

20:55 Sir if we didn't cancel the terms our Answer will be wrong..?.

[@Aaayuush11]

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

[@nishitkhedia5977]

Fully energetic sir😁😁😂😂😋😋

[@ashishsclassroom]

16:58 sir got stuck at this point , but epic explanation

[@biosavat9475]

16:57 Sir lost his flow and tried again but then told the editor to cut it 17:03. Funny but awkward moment Lol

[@vindhywasinivishwakarma792]

Yaa !! Bro so funny sir is little confused 😅 but after sometime sir got to know. "🥺" This emoji is so funny 😂😂

[@harshitnagpal3818]

He said kuch or kar kuch or lmao

[@sarika.gadekar]

Sir your are best teacher in the world 🌎