The subtle exponential

Поділитися
Вставка
  • Опубліковано 5 лис 2024

КОМЕНТАРІ • 39

  • @jeesimplified-subject
    @jeesimplified-subject  День тому +3

    Revision start ni kiya hoga?
    Enrolments are now open for revC25, Only 60 entries open for live program! courses.jeesimplified.com/courses/Revision-Course-Math-and-Physics-66ec38402c79b06466a55fe8-66ec38402c79b06466a55fe8

  • @dheerendrayadav8335
    @dheerendrayadav8335 День тому +16

    2024 me ayega sun sun k mujhe lagne laga tha mai pichhle saal ka video dekh raha 😅

  • @FAUXVIKINGIITB
    @FAUXVIKINGIITB День тому +4

    For the last problem which you mentioned 1/(3n)!
    It is quiet easy, just put 1, w, and w² in the expansion of (e)^x and add all the three series you directly get, the required ans.
    In addition to this for finding the summation of any integral mutiple of a number like for example, you want to find 1/(5n)! Then, put the roots of 5th root of unity one by one in (e)^x and add all of them, theough this i think we will be able to find for any nth multiple of n.

    • @Colded-h1m
      @Colded-h1m День тому

      @@FAUXVIKINGIITB For any gap of k terms putting kth terms of unity and adding kth equations gives f(a)+f(ka)+..

  • @FAUXVIKINGIITB
    @FAUXVIKINGIITB День тому +1

    Solved 2 from the 3 questions, and i already knew the actual concept.

  • @studyphobe9005
    @studyphobe9005 21 годину тому

    For someone struggling with learning the expansion.. just understand the taylor series or maclaurin series, all the expansion could easily be derived from there.
    Anyways nice questions, struggled a bit but did it 👍

  • @Tryha4d
    @Tryha4d День тому +4

    I do remember solving something like this in limits not revising killed my math

  • @iUt-curse
    @iUt-curse День тому +1

    Bhaiya aab aap tagada explanation krr rhe ho ! ITF wale session me Accha samjate to the but Iss level pe nahi ! TYSM abhi sabh acche se samaj aaraha hai

  • @JitakaharKalita
    @JitakaharKalita 19 годин тому

    Differentiation of ex multiplying with x two times and done

    • @mathsshikshajee
      @mathsshikshajee 4 години тому

      can u explain or give source?

    • @JitakaharKalita
      @JitakaharKalita 3 години тому

      @mathsshikshajee for n³/n!
      Write e^X expansion = 1+x/1!+x²/2! +......
      Differentiate it
      e^x= 1/1!+2x/2!+3X²/3!+.....
      Now multiply with X
      Xe^x= x + 2X²/2!+3X³/3!+.....
      Differentiate it
      Do it same again and see magic
      Differentiate it

  • @ExquisiteHappiness
    @ExquisiteHappiness День тому +2

    Bhaiya 3rd question karte samay I finally reached to 1/3 (Σ[1/(n-3)!])
    Limit n = 0 to ∞, but how can this be possible, negative number aa jayega inside factorial
    I considered 1/(n-2)! inside the sigma, am I wrong?

    • @IshaanSingla-ht5rp
      @IshaanSingla-ht5rp День тому

      Same mera bi aesa hi sum aaya hai

    • @soumilmittal9874
      @soumilmittal9874 10 годин тому

      Same bro i did something else but having the same problem. Negative number in factorial

    • @ExquisiteHappiness
      @ExquisiteHappiness 10 годин тому

      @@soumilmittal9874 okay uska ek solution hota hai
      Jaise suppose Σ(n/n!) , n = 0 to ∞
      Agar (n-1)! me leke jana hai to aaise Karo n = 0 wala term sum ke bahar taaki (n-1)! me n = 0 na ho sake
      i.e
      0 + Σn/n(n-1)! , here n = 1 to ∞
      = Σ1/(n-1)!, n = 1 to ∞
      = e
      Aaise lekin 3rd question me aaisa nhi kar sakte

  • @shreya_2507n
    @shreya_2507n День тому

    please also share the final answers for the other 2 questions .... thank you!

  • @RoseGautam-sw6ly
    @RoseGautam-sw6ly День тому +2

    Ye saare important expansion ki ek lec bana do pls

  • @purvanshsharma9705
    @purvanshsharma9705 23 години тому

    2nd and third hogye but first waala nahi horaha, koi please bta sakta hai.

  • @riteshchakraborty9320
    @riteshchakraborty9320 День тому +2

    People who did this after knowing that no v(n) methd is used❤

  • @cdkw2
    @cdkw2 День тому

    very subtle

  • @PranavSharma-u6z
    @PranavSharma-u6z День тому +2

    Bhaiya pls reply
    I am confused
    I want a book for theory and tough illustrations
    So i am confused btw arihant and om sharma pls reply

  • @vijaysingh-vx4gf
    @vijaysingh-vx4gf День тому

    whats the answer for rest two??

  • @motivationwitharmughan4603
    @motivationwitharmughan4603 День тому

    maza aagaya

  • @painfullystupid9692
    @painfullystupid9692 День тому

    In my opinion differentiation is just easier

    • @vijaysingh-vx4gf
      @vijaysingh-vx4gf День тому

      how can it be done thru differentiation?

    • @painfullystupid9692
      @painfullystupid9692 День тому

      @vijaysingh-vx4gf use the Taylor series expansion of e^x and differentate using binomial theorem method

    • @vijaysingh-vx4gf
      @vijaysingh-vx4gf День тому

      Okay thanks bro

  • @shivx3295
    @shivx3295 День тому +5

    thank god easy vala tareeka reveal nhi hua

  • @Colded-h1m
    @Colded-h1m День тому +1

    Yesb khudse figure out krne me kitna mehnat laga tha bhaiya ap free me competition badha rahe ho🗣️😩

  • @LakshyaVN
    @LakshyaVN День тому +3

    If NTA actually sticks to syllabus this time then Summation of series is out of syllabus

  • @Sujal2007-v6y
    @Sujal2007-v6y День тому

    Lagta hai pichle year ka video edit krke daal diya😂

  • @shivx3295
    @shivx3295 День тому +3

    2024 nhi 2025

  • @star2603
    @star2603 День тому

    First ! Pin plss