Formula for finite geometric series

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  • Опубліковано 17 січ 2025

КОМЕНТАРІ • 27

  • @excelisfun
    @excelisfun 12 років тому +1

    Cool for finance!

  • @aman2426
    @aman2426 7 років тому +2

    How come this video is not on the website?

  • @Hobbit183
    @Hobbit183 8 років тому +4

    Math is like beautiful magic

  • @Hawker920
    @Hawker920 11 років тому +1

    What happens when subscript n starts at 0?

  • @mono_tone_s
    @mono_tone_s 10 років тому +10

    What the hell is happening here???

    • @mono_tone_s
      @mono_tone_s 10 років тому +9

      No wait, I got it now.

    • @myaccount2595
      @myaccount2595 3 роки тому

      Same teach me

    • @mono_tone_s
      @mono_tone_s 3 роки тому

      @@myaccount2595 lmao bro that was 6 years ago, I already gave up and just dropped out of college. Good luck to you

    • @myaccount2595
      @myaccount2595 3 роки тому

      @@mono_tone_s no way bro I am also in the path of giving u,give me hope TwT

    • @mono_tone_s
      @mono_tone_s 3 роки тому +2

      @@myaccount2595 Get good sleep, go to class, stay focused, and stay organized! You got this! Best of luck to you.

  • @freechoas
    @freechoas 8 років тому

    Amazing!

  • @kanavdawra
    @kanavdawra 9 років тому

    sir i need to find formula for
    1,6,6,1,2,5,5,2,3,4,4,3
    where Nmax=n
    no of elements=n*2
    what should i do

  • @vagabond197979
    @vagabond197979 12 років тому

    This is the same method you use to derive the formulas for perpetuities and annuities in finance.

  • @homeblaster
    @homeblaster 12 років тому

    Cool

  • @ChazZen
    @ChazZen 12 років тому

    no, i think he makes these videos according to the general curriculum

  • @GreaterDeity
    @GreaterDeity 12 років тому

    Very good.

  • @ieatpoza
    @ieatpoza 12 років тому

    this came out a few hours after my math test (last question was on geometric serie). coincidence??/

  • @lancemaderal5831
    @lancemaderal5831 9 років тому

    why do you need to multiply both sides by r? my teacher is asking us

    • @lancemaderal5831
      @lancemaderal5831 9 років тому

      Oh. Yeah. Got that. Thanks. By our teacher is asking us why you have to multiply it by r. So, yeah. Thanks

    • @Daggs12
      @Daggs12 9 років тому +1

      +Lance Maderal No one seems to know. We just do it. It's bad teaching. I am trying to find a video that explains why we magically decide to multiply by the common ratio. It doesn't make sense to me.

    • @thelastcipher9135
      @thelastcipher9135 9 років тому

      +Fat_Unicorn12 i strongly agree.. you can watch the video here first to get a better intuition /watch?v=17y9gmqoG3o ...the closest intuitive explanation i can formulate for my own understanding is the multiplication of r in the second line of equation is derived by understanding that the procedure of summing an infinitely big geometric series is very identical to summing a series that is small or finite. therefore, as the common ratio, being -1

    • @pentraxbtd4868
      @pentraxbtd4868 8 років тому

      +Lance Maderal is your teacher educated? R is the algebric constant of the coefficient that is receiving the power n, whereas a is the number that could have been a multiple of r^n that makes the Geometric Progression look more complicated than usual for eg. (1/9)(r^n) where r could be 5. Therefore by expanding each term of (1/9)(5^n) you get 0.55555 , 2.77777 , 13.8888 so in this case (1/9) can be factorised out to get the real geometric progression 5^n

    • @thelastcipher9135
      @thelastcipher9135 8 років тому

      Pentrax BTD lol i think you misunderstood his question. he was referring to the next line of expression. he asked why do we have to multiply the 2nd expression by r to cancel out terms from the first expression.

  • @viraj_singh
    @viraj_singh 6 років тому

    This video is missing from khan academy's app.

  • @literallyhitler3059
    @literallyhitler3059 12 років тому

    Yes.