Art of Problem Solving: 2019 AMC 12 A #23

Поделиться
HTML-код
  • Опубликовано: 24 окт 2024

Комментарии • 13

  • @helo3827
    @helo3827 4 года назад +11

    richard always makes a problem look so easy

  • @jbrittsun
    @jbrittsun 5 лет назад +3

    Wow, he’s back with a vengeance!

  • @kenmaslefttoe
    @kenmaslefttoe 2 месяца назад

    Doing this without calculator is craz

  • @galibahmedchowdhury4405
    @galibahmedchowdhury4405 5 лет назад +3

    MAN, you look like BATMAN! I mean Christian Bale.

  • @RR-bs9mr
    @RR-bs9mr Год назад

    If anyone wants to know the proof for the log idenity here is it
    Spolier:
    note: if log does not have a base then it is 10
    consider log(B) when you rase it to the negative 1 power then it will be 1/log(B).
    using the fractional rule Log(B) can be expessed as LogB/log10.
    so log(B)=LogB/Log10
    now raise both sides by the power of -1
    now you have
    1/Log(B)=Log(10)/Log(B)
    using the fractional for and turing it back into a log thing you get
    1/Log(B)=Log(baseB) of 10

    • @jimpim6454
      @jimpim6454 10 месяцев назад

      This makes no sense... First of all why are you using log base ten when the proof involves all possibe bases... And all you done was multiply by one wjen you busted out long10(10)

    • @RR-bs9mr
      @RR-bs9mr 10 месяцев назад

      It doesn't have be log base 10 but I said log base 10 @@jimpim6454 😓

    • @jimpim6454
      @jimpim6454 10 месяцев назад

      @@RR-bs9mr it's actually not clear at all what you done I'm sorry the last sentence I cannot make sense of

    • @RR-bs9mr
      @RR-bs9mr 10 месяцев назад

      I do agree it pretty difficult to read@@jimpim6454

    • @RR-bs9mr
      @RR-bs9mr 10 месяцев назад

      I probabaly will edit to make more sense