Lagrange's theorem | lagrange's theorem in hindi | lagrange's theorem proof | group theory

Hi Everyone !!!
My name is Ravina , welcome to "Ravina Tutorial". Here you will find video lectures related to Bsc/Msc (Higher Mathematics).These video lectures are concept oriented & explained in very simple language. I feel after watching these videos you will clear most of the doubts(sometimes I also creat doubt :).
In this playlist we are studying an important concept in group theory called as cosets.
and this video is about
Lagranges's Theorem: Order of subgroup of a finite group divides order of that group
Playlist: • Coset
Hilbert's Hotel- • Some infinities are bi...
Hamesha Ki Tarah
Thanks For Watching
#ravinatutorial

[@BScClasses]

Who noticed basic mistake.....
Mam how it can be possible
According to your method
n =km
Because
You added
o(G)= o(H)+o(Ha1) + o(Ha2).....+ o(Hak)
Then it should be
n = m + m.k
n=(m+1)k
But you write it
n=mk

[@RavinaTutorial]

👍, yes u r correct , here I shouldn't include H,
o(G)=o(Ha1)+o(Ha2)+..........o(Hak),
Because there are k distinct right coset, and H will be one of those:)

[@BScClasses]

Thanks mam....
You accept your miscalculation ....
Be honest I really like your method..

[@adilathi6188]

n=mk take left coset?

[@zubairsmathtutorials4542]

Mam can we write like this
Let He, Ha1, Ha2,.... Hak be K distinct right cosets

[@SATYAMJANA-xd7cv]

​@@RavinaTutorial
Ooo!
There may or may not be H

[@eachandeverytrickbynoman9091]

I'm also a Mathematician, Doing PhD research in Fluid Mechanics. I like the way you speak and you elaborate all the tricky terms. Love from Pakistan ❤️

[@AnkitSingh-fy8vx]

After so many videos I found that this method is easiest method to prove lagaranges theoram

[@xsaurabh1178]

Mam you are a magician for us to teaching clearly....❤️🙏

[@void2423]

Ma'am you're doing a great job!!
Please continue this. You are helping thousands of students

[@RavinaTutorial]

Thank you

[@journey2code]

I was studying graph theory from another platform but got bored with the proof of Langranges theorem. I wish i would have studied it from u!! Such a nice way of keeping things so simple...❤️...Wish u very gud luk!!

[@RavinaTutorial]

Glad to help:)

[@umakant6908]

The last example of division concept is awesome 😍

[@ajaymarothiya6680]

Sister aap jaisa to koi samjha bhi nahi paya, heartly thanks 🙏🙏

[@yaseenshaik8702]

Wow superb mam ❤️❤️ very nice explanation hands off to u 🙏🙏

[@RahulThakur-dp3dw]

Thanks for helping us mam. A big heart for you❤️❤️❤️

[@kapil2216]

Thanks mam for details explained.

[@sudhanshuvishwakarma8669]

This is the perfect example of beauty without brain💥

[@khushirangera192]

Thanks mam ji... bhot achha explain kiya aapne

[@simran3127]

thanks mam your explanation trick is very best and I can do it Lagrange s theorem. this video was very helped for me

[@mkhatri7744]

After watching a lot of videos 😕finally i understand this theorem with the help of your video 🙏thanks mam.❤

[@anshul734]

Kuch samajh ni aaya
Abb aagya yrr 2- times dekhani padi video to samajh mein aayi Thm's
1 like 4 u

[@abhinandanjain2399]

Thank you mam aapne bHut help ki bahut achche se theorem samjhayi bilkul easy steps me Thank you. 😊

[@VikasKumar-nb2pn]

awesome explanation ....
really ur concept is crystal clear.....
thanx for such wonderful explanation....

[@RavinaTutorial]

:)

[@gouravchouhan5616]

Thanks your explanation is superb 😊

[@worldoffact7678]

Mene behot sare vedeos dekhe per sajh hi ni ayaa tha per aaka vedeo dekha to seb kuch semjh aa geya thanks mame,😊😊😊

[@raftywate]

Beautifully explained! 😍

[@Ashuto91]

Thank u so much maam for your videos.
Really maam aapka explanation bhot hi acha ha.
Maam Aapne GROUP THEORY ke har topic ko bhut hi detail me easiest way me explain kiya ha.
Padh k maza aa gya.
Maam Aap aise hi Bsc Maths k har topic dalte rahiye...!

[@yeshwantpulaskar]

Kya explain hai mam , I understood it's very easy , tomorrow is my exam thank you so much mam ji

[@revanthkalavala1829]

Every subgroup order must be divisor of G but there is no guarantee that for every divisior there exists a subgroup whose order is equal to divisior

[@abhinandanjain2399]

Thank you so much mam for this wonderful amazing shaandaar educational video shaandaar video hai.

[@RavinaTutorial]

Welcome, share jarur karein:)

[@deepaksarvepalli2344]

Awesome explanation...... Ur explanation is...... Wordless..... Keep doing more Videos mam,...... From today onwards i am one of ur subsciber

[@RavinaTutorial]

Thank you so much for your kind words:)

[@sriharshat.m8190]

THANK YOU Madam,can you please slove Lagrange's Problems. please, your way of teaching is exellent mam

[@revanthkalavala1829]

N|M = fractional value,doesn't get considered bcoz the notation was from number theory and in number theory we talk about only integers

[@faishalahmad3999]

Apka explanation bahut he jada acha hai
Thanku so much didi

[@journey2code]

Great.....such a simple proof

[@Misssharma3379]

Thanku mam apne j qn book se b jda easy krba diya

[@abhinandanjain2399]

Thank you so much mam.

[@43093]

Prove that order of the subgroup divides the order of the group
by the index of the subgroup (Lagrange theorem).Specify all steps. Plz answer this

[@abhinandanjain2399]

Thank you mam.

[@UchihaMadara-wz7jo]

Thank You mam, I literally searched and watched a lot of yt videos on Langrange's Theorem but got that quality understanding from this video only.but mam i had a small doubt at the end you hav divided n/m =k but we have to prove m/n

[@ksyedbasha6442]

Nice teaching thank you to more theorem explanation thank you madam

[@sonambhardwaj1293]

Mam ur teaching way is really awesome i m vry happy 😊thanku mam

[@adityacoachinginstitute2627]

Ab jaake samajh aaya thanks

[@zubairsmathtutorials4542]

Mam why we take distinct cosets ... Agar hum saare cosets lenge tab kya hoga

[@rajkhurana830]

Really u r osm teacher
thanks

[@syedfaheez69]

You are my life saver akka

[@raghudolli6058]

Mam your teaching is osm

[@devansh_4u]

best concept clarification

[@Ashleyyx.]

Please clarify me ! Why do we write distinct cosests jab k we know what a group G has only identical or disjoint cosets why don't we write that we took disjoint cosets !!!
This is making me so😭 irritate

[@abhinandanjain2399]

Shaandaar video mam.

[@ShivamSingh-xc7wz]

Amazing ma'am thank you

[@abhinandanjain2399]

Wonderful video mam.

[@adonis9568]

Thanks love from kerala

[@sunnybhagvatulla7876]

Teach with the simple way🙏

[@sunnybhagvatulla7876]

I facing difficulty in b.sc non medical mathematics

[@dicksonselvan7223]

tq very much for simple proof madam.. ur awesom

[@syamalchattopadhyay2893]

Excellent video lecture for self-study.

[@Bhojpuriyabayar456]

Mam camera paper ke parallel rkhti to jyda saf dikhta 👍👍

[@Gatul_Koshur171]

Thanks

[@onu_here4u]

Wonderful teaching 👏

[@vidhyapithtapasideb3830]

Really very very nice concept.

[@Anuwanshika]

Great 👍👍👍👍👍👍👍👍👍

[@sachin8552]

Mam please solve some problems of exercises also
We understand the concept but not able to solve the problems
🙏🙏🙏

[@takealook409]

Mam, Aapne jo btaya hai vo to sahi hai main exam me chhap du no milega na qki niche comment dekha kuchh galat ho gya method

[@sumitverma6095]

Mam it is necessary to clear ur basics before starting a you tube channel because u r saying Order of subgroup divides the order of group where order of subgroup= n and order of group = m. So it will be n/m
Not m/n
Because when we say 2 divides 6 so it becomes 6/2 not 2/6.

[@RavinaTutorial]

Yes

[@pwno1parth533]

Thanks mam very simple proof

[@thedeshbhakt782]

Thank you mam for doing nation building work keep it up
Jai Hind

[@sumitchakraborty8511]

Why you assumed that n right cosets
are not distinct by taking only one example.

[@MuhammadRashid-eh6lk]

2) Find out all subgroups of group G = { 1, -1, i, -i, j, -j, k, -k }. please solve it

[@navneetdalal8415]

Mam this is no. 7 video.. Isse phle only 4 hi vedeo hh please isse phle vale ka link send kardo.. Mam... Please🙏🙏🙏🙏

[@kalalonda3434]

Thanks dear

[@Jayee7777]

Mam please rigid dynamic ka video banaiye please ap bohot acche parate ho...samajh mai nehi ara hai mam ap video banaiye ... please 🙏🏻😢😢

[@saralaj4726]

Thnq so much madam

[@meghanakumari7258]

Tqsm sister I jus t got it within the video itself tqsoooooosoooo much

[@vijaybarnwal6327]

Good morning mam, 6.15 time Jo cosets ke elements ka union liya gya usme Ha1 aur Hak me common elements bhi to ho sakte hain.. kya unki numbers union k baad Kam nhi hogi mam?

[@aryanraj594]

Samajh gyen😊 either disjoint or identical.. we took disjoint

[@abdullahbutt2180]

Great
Thank you so much

[@mohammedfahad2746]

Nice explanation 👌

[@naveenkumarponnala3019]

Thanks you so much for helping me in exams😜

[@anilanil8864]

Nice explanation ....Qualification your....

[@zebiamber_79ambreen6]

Excellent

[@NJS_3249]

Thankyou mam for such a simple explanation, except H , everything was correct and easy. Jai Hind 🇮🇳

[@RavinaTutorial]

I apologize for that mistake.

[@NJS_3249]

It's ok, teacher's don't apologise 🙏

[@biswajitdebnath3556]

Thank you mam for explained in easy method

[@ManishKumar-ss4ks]

thank you

[@trickytip]

Satisfying explain 👍🤟✌

[@subhashchandrayadav2436]

Can you teach integration of all types

[@muhammadnaeem8645]

Good job

[@sanskritisingh6449]

Mam isme book me O(G)/O(H) aur aapne isme O(H)/O(H) explain Kiya hai i am confuse

[@naturaltreasure5831]

Which book?

[@Latha819]

Tq u mam for such a good explanation

[@1sscmathhighermathbd445]

very good lec

[@DeepakGupta-gb9og]

Please explain "Every group of prime order is cyclic".Please ......

[@RavinaTutorial]

Let G be a group of prime order p>1. Let a∈G such that a≠e. Note that ⟨a⟩≤G (is subgroup generated by a), so by Lagrange's theorem order of ⟨a⟩divides order of G. Since p is prime, either o(⟨a⟩)=1or o(⟨a⟩)=p but o(⟨a⟩)=1| is not possible since that would imply ⟨a⟩={e}⟨a⟩={e} and therefore a=ea=e. So o(G)=p=o()G, and therefore G= means G is cyclic

[@navneetdalal8415]

Isse phle vali video ka link send kardo.. Please mam...

[@mathsexperttutorials7375]

Excellent explanation 👌

[@saralaj4726]

Thank you so much madam

[@sumanjangra8236]

Mam sequence and series math karwado plzzzz

[@madhavgarg0220]

Tysm❤

[@relaxmeditation6175]

Your voice is very sweet

[@md.rifatsharif7158]

Amazing mam.🇧🇩

[@utkarshdhanwani362]

Converse of laganges theorem is not right so last part of theorem is not correct

[@mukeshsahu9698]

Starting me apne galat kaha vaha o(G)/o(H) hoga...

[@mejansk1739]

App galat ho.

[@thenewdimension9832]

Aha Maja aa gaya

[@medinipurarmeye]

App hi galat soch te hooo

[@Bauwaaaaaaasirrr]

Ma'am envelope bhi pdha dijiye

[@shaileshparihar966]

Thanks mam

[@Nizami.]

ᴛʜɴq ᴠ ᴍᴜᴄʜ ᴍᴀ'ᴀᴍ...♥️

[@pardeepphour918]

Mam es ka convers true ne ha m/n but we cannot ask order n is must be subgroup

[@RavinaTutorial]

Converse of Lagrange's theorem doesn't hold, very famous example The alternating group G=A4, which has 12elements has no subgroup of order 6.

[@AshwaniKumar-yg1ek]

Thank You ❤

[@lalitpushpad5684]

👏👏

[@DGeminine]

Is 2|4 equals to 2/4???
Plss tell

[@RavinaTutorial]

2|4 means 2 divides 4,
2÷4 i.e 2/4 means 2 divided by 4
Both are not same later one is a kind of operation.