Vectors Class 12 | JEE Main & Advanced

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  • Опубліковано 22 гру 2024

КОМЕНТАРІ • 139

  • @JEEnexus
    @JEEnexus  Місяць тому +5

    The PDF of the session is in the link:- unacademy.com/content/jee/unacademy-nexus-jee-play

  • @BenStokes1234
    @BenStokes1234 Місяць тому +23

    12:55 18:07 18:22 30:34 : Length manipulation : To write a vector of reqd length (k) // to given vector (a), multiply length of reqd vector (k) with a^ (unit vector of a vector). [In other words, vector ki length ko change Krna h aur direction ko same rakhna h]
    16:20 22:36 : Free vs Localised Vector (In my words, Vector ka naamkaran kr diya toh wo localised ho gya, ie us par restriction aa gyi)
    20:15 20:40 1:19:46 : PV of A : Vector from Origin to Pt. A
    36:27 42:50 43:09 1:05:42 1:10:06 : Section formula mein ratio remains same. Bas reference jaha liye ho, wo sabhi vectors mein lga do.
    46:33 49:20 50:02 (🌟) 51:08 1:11:24 : Aese question mein, Jin vectors ke starting pt same hn unko ek saath rakho, jisse section formula laga sko by taking that same starting pt as reference. 1:10:30 1:10:54 Section formula ki shakal complete Krna padega (by multiplying and dividing by a const.)
    [ 48:03 : AB + CB = - ( BA + BC ), this will be used to get vectors having same starting pt. )
    1:13:03 1:17:19 :
    1:21:47 1:23:33 1:37:25 : When collinearity condn is to be applied, use that vectors AB & BC are proportional rather than introducing another variable k & showing AB = k(BC)
    1:26:30 1:27:16 1:28:24 : Collinear Qs, 2nd variety : If vectors A & B are non collinear somehow ( 1:29:07 : eliminate the non concerned vector ) use k(A) = c(B) then k=c=0
    🌟 : 1:34:36
    1:43:23 1:44:05 : Condn for collinearity of pts A,B & C in terms of their PVs.
    1:54:01 1:55:40 1:56:51 4:38:32 : In 2D, we can compare coefficient of 2 non collinear vectors. Similarly, in a plane we can compare coeff of 3 non coplanar vectors. ( As, via fundamental theorms we can express vectors uniquely thus we can compare coeffs)
    2:13:29 2:14:36 :
    2:43:19 : When 2 vectors are perpendicular, their dot product = 0. Vector(s) perpendicular to 2 vectors is given by the cross product of the 2 vectors.
    3:01:24 3:05:27 3:18:41 :
    3:02:36 : Two perpendicular vectors ke addn ka | | accha hota h. (a.b = 0)
    3:13:51 : 🌟
    3:14:27 3:15:07 3:15:45 3:20:40 : Lagrange's
    3:43:50 : STP mein kuch bhi atak rha h toh go to Properties of Determinant
    4:13:39 4:15:01 4:31:35 : How to keep this STP formula in mind (and its importance). [Agar vectors i, j, k men pta h tabhi STP Det se nikal skte warna fir yhi formula se STP nikalna pdega with help of magnitudes of vectors and angle bw them]
    4:48:12 4:49:41 4:53:32 : IMP. Expression of VTP ( 4:48:48 4:50:16 : approach )
    4:55:37 4:57:10 : A.B & A×B ek saath, take cross of A×B with A or B (ie create the above imp expn of VTP)
    5:20:17 : Cross product = 0 that vectors are // (A = kB. Find k sing other given info. )
    5:21:13 5:21:52 : Vector Eqns Approach (Identification)
    5:21:22 : In good Qs of Vector Eqns, we have to use fundamental theorm of 3D. [ Write unknown vector in space (uniqely ie coeff can be compared) using 3 non coplanar vectors ]

    • @musictwilight1682
      @musictwilight1682 Місяць тому +2

      Respect for a JEE aspirant! 👍🏻✨In,3D it'd be me.🔥

  • @avani6040
    @avani6040 День тому

    57:00
    2:15:20
    2:36:36
    2:49:20
    3:06:58
    3:20:33
    3:35:36
    shortcut 3:51:00
    4:43:21 nice q
    5:10:58 keep in mind
    5:38:00 onwards rewatch

  • @user-ix6uq6mf3y
    @user-ix6uq6mf3y Місяць тому +12

    Last song has mesmerized me ❤️‍🩹

  • @pranaykintali
    @pranaykintali День тому

    40:00 method 2 revise
    51:00 standard approach
    1:22:00 repeat
    1:30:00 repeat
    1:33:00 repeat

  • @athrv1018
    @athrv1018 3 дні тому

    Sir in 2:39:40 question we can also assume both B1 and B2 vectors and individually apply the given conditions on them. Then we will get the relations between the variables and then we can easily calculate their respective values. Time taking process but still easier to think about.

  • @Falcon-ck9mn
    @Falcon-ck9mn 23 дні тому +2

    2 approaches wala sawal done and dusted 🔥
    Ans 3pi/4 wala sawal done and dusted🔥
    5:48:00 bhai aap to multitalented ho 🔥🔥🔥🔥🔥🔥

  • @shakti10287
    @shakti10287 23 дні тому +2

    1)2 approaches waala sawaal [Done and Dusted]....
    2)Ans 3pi/4 wala ans [Done and Dusted]....

  • @sarvesh9139
    @sarvesh9139 День тому

    @1:40:00 tto @1:55:00
    @3:48:00 onwards trick
    @4:53:00

  • @manishnagar3434
    @manishnagar3434 Місяць тому +2

    Best teacher in all UA-cam.

  • @anmolgupta5057
    @anmolgupta5057 Місяць тому +66

    Vote for class 11th circle detailed one shot >>>>>>

  • @BabitaJangir-z8m
    @BabitaJangir-z8m Місяць тому +4

    Mere sbse acche sir AK sir ❤❤😊❤❤

  • @18football18
    @18football18 Місяць тому +7

    Finally my favourite section of vectors and 3D
    Thankyou for this lecture bhaiii
    Will complete soon

  • @BhaktiPatil-f1p
    @BhaktiPatil-f1p 3 дні тому +1

    3:46:40 little mistake , it should be bce

  • @viratpratap7709
    @viratpratap7709 11 днів тому +1

    ans 3pie wala sawal done and dusted ....sir yee ques app joo karvai hai ussesey bhi ek easy tarike sey hoo skta hai ...joo 2024 wala ques uske phele aap repeat krne ko bole the uske logic sey easily hoo jaa rha (90% ques match krta hai) ....btw love your video

  • @SoumyadeepDas-s4c
    @SoumyadeepDas-s4c Місяць тому +2

    Sir complete hogay vector ❤ love u bhai itna acha se kabhi nahi padha i❤❤❤ love u bhai

  • @sanskarpatil-z9u
    @sanskarpatil-z9u 19 днів тому +1

    mere bhai ...❤2approaches wala Sawal Done And Dusted

  • @saritasoni5339
    @saritasoni5339 Місяць тому +2

    Fantastic lecture ❤❤❤

  • @CKK2007
    @CKK2007 13 днів тому +1

    1:50:29 1:50:31 1:50:33 1:50:33 1:50:35 1:5

  • @MohammadShahnawazFaiyaz-z6z
    @MohammadShahnawazFaiyaz-z6z Місяць тому +2

    Sir what about differential equation and Area under curve

  • @Misama-sina
    @Misama-sina 26 днів тому

    can someone help me with expression? 4:49:44 Here shouldn't it be methamatically zero? because (a.b).a can also be written as mod of a square dot b? and then both expression will be same and be zero. Or am I missing something?

    • @VP-2307
      @VP-2307 25 днів тому

      Here a.b is expressed as a magnitude as dot product is always a scalar quantity for example lets say a.b=5 here it says 5 multiplied by vector(a) basically directly bina dot kre u cant multiply a inside

  • @hritiksahoo1145
    @hritiksahoo1145 Місяць тому +6

    Sir can you please use blackboard for learning on plus ❤❤??

  • @jeegrindiitb
    @jeegrindiitb 4 дні тому

    4:27:25 eze clap , tetrahedron done & dusted

  • @CKK2007
    @CKK2007 13 днів тому +2

    Hi😊 1:50:07 1:50:09

  • @lokendrarajput2183
    @lokendrarajput2183 25 днів тому +1

    Amazing session ❤

  • @madhupreet123
    @madhupreet123 Місяць тому +1

    Applications of Integrals?

  • @pratikkumar9567
    @pratikkumar9567 Місяць тому +5

    Answer 3pie/4 wala sawal done ✅ and dusted

  • @TechTreeAbhinavRao
    @TechTreeAbhinavRao 5 днів тому +1

    58:35

  • @muskoo_7
    @muskoo_7 12 днів тому

    Ans 3pie/4 wala sawaal done and dusted sir

  • @Doraemon-t4f
    @Doraemon-t4f Місяць тому

    3π/4 waala sawaal done and dusted...
    tetrahedron volume done and dusted...
    thank u sir..💛

  • @AwwYeahPvP
    @AwwYeahPvP Місяць тому +9

    Sir, I hope you find this comment. Sir, Mai 2025 regular school going aspirant hu. Mera syllabus almost complete hai par mere weak concepts hai aur bahut kam practice hai.
    School ki wajah se self study aur problem solving ka time nahi milta, saare lectures Mai beet jata hai. Jab bhi holidays hoti hai tab questions thode ho paate kyuki mera confidence gir jaata hai.
    Maine socha tha ki kam time ki wajah se mai crash course nhi kar paunga toh mai sirf self study kar raha hu. Kuch chapters ache jaare hai, kuch nahi aur mai bahut inconsistent hora hu.
    Toh mai sochra hu ki aapka nexus course join karlu since I already have plus. Par school ki wajah se mere ko darr hai ki mere ko self study ka time nahi milega but mai unguided nahi rehna chahta. Sir, aap bataye, as a regular school going student, mujhe crash course ko kaise efficiently use karu taaki mai problem solving bhi ache se kar pau aur dummy school waale baccho ke barabar aa pau.

  • @berry7454
    @berry7454 Місяць тому

    observation
    2:20:02
    2:10:51
    2:13:28
    2:43:21
    3:01:12
    3:21:30 question
    3:35:26 question
    4:10:10 imp results
    4:27:00 tetrahedron explained
    4:47:30 observation
    4:40:30 question repeat****
    4:45:20 question repeat *
    4:50:09 imp queue
    4:55:00 imp observation + question
    4:57:42 The geometrical significance of vector triple product also solves the next question
    5:01:26 imp imp queue
    5:31:00 question

  • @mygameplayrocks5249
    @mygameplayrocks5249 7 днів тому

    Sir 3:34 me it I mehnat ki zarurat nahi a B ka mod
    x sin45 -2b 0 hojayega

  • @bestofbestbob2199
    @bestofbestbob2199 23 дні тому

    Where to get notes of this session?

  • @Hello.r-j9z
    @Hello.r-j9z Місяць тому +1

    2 approaches wala sawal done and dusteddd !!!!!!

  • @MonikaSharma-u5b
    @MonikaSharma-u5b Місяць тому

    How do you get class notes

  • @DRAGONGamingZone
    @DRAGONGamingZone 13 днів тому +5

    Har 5-10 min me ad aa rhe😡😡😤

  • @CKK2007
    @CKK2007 12 днів тому

    Tqsm so much

  • @muskoo_7
    @muskoo_7 13 днів тому

    2 approaches wala sawaal done and dusted sir

  • @kadimimedhasve9711
    @kadimimedhasve9711 3 дні тому

    Sir,
    Do approaches waala sawaal done and dusted.

  • @kadimimedhasve9711
    @kadimimedhasve9711 3 дні тому

    Sir, 3pie/4 waala sawaal done and dusted.

  • @pratikkumar9567
    @pratikkumar9567 Місяць тому +1

    2 approach wala sawal done & dusted..

  • @shovitkumar3639
    @shovitkumar3639 27 днів тому

    Love u bhai❤❤❤❤❤❤😊

  • @shubhamruparel2750
    @shubhamruparel2750 Місяць тому +3

    2 approach wala question done and dusted

  • @sanjaykumarsingh3388
    @sanjaykumarsingh3388 Місяць тому +1

    Bhai differential and area under curve kab aayege

  • @palexplains
    @palexplains 3 дні тому

    3pi/4 done and dusted bhai ,revision ke liye dekh rha tha 1st attempt mein baan gya 3pi/4

  • @nihaldaggupati
    @nihaldaggupati Місяць тому +2

    Sir please fix mic issue from next class🙏. Thanks

  • @anishrobert9801
    @anishrobert9801 Місяць тому

    Thank you BHAIYA

  • @PadhaiKaro-z6d
    @PadhaiKaro-z6d Місяць тому

    Sir notes kaha milenge??

  • @shreya...007
    @shreya...007 Місяць тому +3

    I'm new to Sir's classes so one of the first times I heard him say 'Shera' I thought he said 'Shreya' and tab se mein bohot khush hui. Ab uska explanation mil gaya, phir bhi mein toh sochne waali hooon ki sir mujhse baat kar rahe hai, acha lagtha hai ❤

  • @Vikasjandu11Vikas
    @Vikasjandu11Vikas 17 днів тому

    Ans 3Pai/4wala question done and dusted

  • @Jeeaspirantiitb
    @Jeeaspirantiitb Місяць тому

    Thank you bhai❤

  • @AyushRaj-wb5nx
    @AyushRaj-wb5nx 17 днів тому

    Full class 12th for board exam ek lecture bana dijiye please 😊😊😊

  • @saniaabdul4029
    @saniaabdul4029 13 днів тому

    I will completely watch thos lecture and then report how iam feeling after completing my vectors chapter 😉🙄

  • @JyotiJain-mt7kg
    @JyotiJain-mt7kg Місяць тому +1

    Sir vectors ki kitni session honge complete hone mein

  • @anishrobert9801
    @anishrobert9801 Місяць тому +2

    BHAI DETAILED ONE SHOT OF APPLICATION OF INTEGRATION KAB AAYEGA

    • @kaliaiit
      @kaliaiit Місяць тому +3

      Shera, woh abhi ke liye, last yr ke ine shots se krlo... Best wishes❤❤❤

    • @anishrobert9801
      @anishrobert9801 Місяць тому

      @kaliaiit Ok BHAI YOU ARE THE BEST

    • @Annoxy
      @Annoxy Місяць тому

      ​@@kaliaiitis this official account of arvind sir or its parody account

    • @Mr.RedANGLE
      @Mr.RedANGLE Місяць тому

      @@Annoxy official

  • @poster_boy
    @poster_boy Місяць тому

    2 approaches wala sawal done and tested

  • @MERCY..27
    @MERCY..27 Місяць тому

    Notes ye session ke ?

  • @ishaanlohani
    @ishaanlohani Місяць тому

    1:13:40 1:13:41

  • @sanjaykumarsingh3388
    @sanjaykumarsingh3388 22 дні тому +2

    Bhai probability kab aayega

  • @deepanshupanwar4539
    @deepanshupanwar4539 29 днів тому

    48:45 doubt

  • @amitjoshi8479
    @amitjoshi8479 Місяць тому

    What about prbabilty

  • @deepanshupanwar4539
    @deepanshupanwar4539 29 днів тому

    45:36

  • @nitingupta315
    @nitingupta315 Місяць тому

    2:46:25 😂 sir ka riyaaz

  • @shubhamruparel2750
    @shubhamruparel2750 Місяць тому

    Tetrahedron volume done and dusted

  • @Misama-sina
    @Misama-sina Місяць тому

    2:00:37

  • @deepanshupanwar4539
    @deepanshupanwar4539 29 днів тому

    17:16

  • @SubhangSomvanshi
    @SubhangSomvanshi Місяць тому

    Song sung was so beautiful bhai

  • @sritamdash1330
    @sritamdash1330 Місяць тому

    Love you bhi 😘😘😘😘💖💖💖💖

  • @Rudra-hl1cs
    @Rudra-hl1cs Місяць тому +2

    Bhai kya aap Differential Equations and Area Under Curve nahi laaoge??

    • @kaliaiit
      @kaliaiit Місяць тому +3

      Woh last yr ke one shots se cover krlo, shera.... Best wishes❤❤

    • @Rudra-hl1cs
      @Rudra-hl1cs Місяць тому

      @kaliaiit Okayy mere bhai 🫶❤️

    • @Rudra-hl1cs
      @Rudra-hl1cs Місяць тому

      @kaliaiit Man toh actually sirf aap hi se padhne ka hai, aur new wale one shots are way better and more helpful than any other one shot on YT ❤️

    • @Akhil-vs4ym
      @Akhil-vs4ym Місяць тому

      Bro triple products are deleted for mains right??​@@Rudra-hl1cs

    • @thelastpersononearth9765
      @thelastpersononearth9765 Місяць тому

      ​​@@Rudra-hl1csHa new ones have many questions in class.

  • @poster_boy
    @poster_boy Місяць тому

    answer 3pi by 4 wala sawal done and dusted

  • @DhirajGupta
    @DhirajGupta Місяць тому

    3:37:22 😢Sir mai commerce ka student hu so aap thoda sa jo science ke liye chor dete hai aisa maan kar ki sare science wale hai to physics me padhe hi honge sir please sir har chij detailed me batayiye n jaise cross wala me kiye samajh nhi aaya doosra jagah se cross dekh kar aana pada then wapas yaha dekh raha hu

    • @nabhyabihani6659
      @nabhyabihani6659 Місяць тому +5

      Commerce wale vectors thodi na padhte hai.Tum jaake balance sheet talley karo. Galat lecture mein baithe ho

    • @weo9473
      @weo9473 Місяць тому

      ​@@nabhyabihani6659 Maine suna ki commerce waale bhi vectors padhte hai lekin sirf basics hi

  • @adamkumar5911
    @adamkumar5911 4 дні тому

    1:11:00 what

  • @shrshtiwadhwa8151
    @shrshtiwadhwa8151 Місяць тому

    bhai hamara great haiiiiiiiiiiiiiiiiiiiiii

  • @AnurajKumar-x6v
    @AnurajKumar-x6v Місяць тому +1

    bhai op

  • @pi_man007
    @pi_man007 23 години тому

    2 approaches wala sawaal done and dusted

  • @Annoxy
    @Annoxy Місяць тому

    Sir class 11th ke bhi detail oneshot complete kardo please

  • @BHAGYAPATEL-t2q
    @BHAGYAPATEL-t2q 27 днів тому

    Do approach wala sawal done and dusted

  • @monissiddiqui1420
    @monissiddiqui1420 Місяць тому

    Heart touching song ❤️‍🩹

  • @PadhaiKaro-z6d
    @PadhaiKaro-z6d Місяць тому

    Sir pls provide notes 🙏

    • @MERCY..27
      @MERCY..27 Місяць тому

      Notes mile kya ?

  • @shrshtiwadhwa8151
    @shrshtiwadhwa8151 Місяць тому

    done and dusted

  • @anshuldipanshu3990
    @anshuldipanshu3990 25 днів тому

    96

  • @Yash_464
    @Yash_464 Місяць тому

    ❤❤❤

  • @Vikasjandu11Vikas
    @Vikasjandu11Vikas 18 днів тому

    Vector op

  • @TALJKS
    @TALJKS Місяць тому +2

    sir plzz circles bhi leao class 11

  • @ugaush9596
    @ugaush9596 18 днів тому

    Is this sufficient for jee mains 2025? Pls tell!!

  • @siddharthsehgal6035
    @siddharthsehgal6035 Місяць тому

    sir pehle please 11 th ka highweitage revise kara dijei ga

  • @anishrobert9801
    @anishrobert9801 Місяць тому

    BHAI RRR SERIES

  • @ankush7733
    @ankush7733 20 годин тому

    1:31:10

  • @deepanshupanwar4539
    @deepanshupanwar4539 29 днів тому

    1:23:53

  • @Vikasjandu11Vikas
    @Vikasjandu11Vikas 17 днів тому

    2 approaches wala question done and dusted

  • @Annoxy
    @Annoxy Місяць тому

    Sir class 11th ke bhi detail oneshot complete kardo please

  • @Maxtern-yo3vw
    @Maxtern-yo3vw Місяць тому

  • @deepanshupanwar4539
    @deepanshupanwar4539 28 днів тому

    2:10:38

  • @Annoxy
    @Annoxy Місяць тому

    Sir class 11th ke bhi detail oneshot complete kardo please

  • @jyothinagaraj2344
    @jyothinagaraj2344 3 дні тому

    3:02:04

  • @deepanshupanwar4539
    @deepanshupanwar4539 28 днів тому

    2:10:38

  • @Annoxy
    @Annoxy Місяць тому

    Sir class 11th ke bhi detail oneshot complete kardo please

  • @deepanshupanwar4539
    @deepanshupanwar4539 26 днів тому

    2:55:59

  • @deepanshupanwar4539
    @deepanshupanwar4539 26 днів тому

    3:32:30