Find the value of đ‘„ - Algebra Can be Fun

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  • čas pƙidĂĄn 4. 07. 2024
  • Find the value of đ‘„ - Two Birds by the Riverside (Algebra Can be Fun by Ya. I. Perelman)
    math u teach u math

Komentáƙe • 4

  • @davidhjedwy
    @davidhjedwy Pƙed 2 dny +1

    if the sides are equal, and the angle is 90 degrees, you can rotate one triangle to get a rectangle

    • @davidhjedwy
      @davidhjedwy Pƙed 2 dny +1

      implies similarity, then congruence

  • @eddiegaltek
    @eddiegaltek Pƙed 22 hodinami +1

    Where does the 100x come from?
    The other numbers - 900, 2,500 & 400 - are fairly obvious, if someone is watching the video they probably don't understand were the 100x came from; if they do they are probably not watching the video.

    • @mathu6514
      @mathu6514  Pƙed 22 hodinami

      (50 - đ‘„)ÂČ = (50 - đ‘„)(50 - đ‘„) = 50*50 - 50đ‘„ - 50đ‘„ + (-đ‘„)(-đ‘„) = 2500 - 100đ‘„ + đ‘„ÂČ
      (a - b)ÂČ = aÂČ - 2ab + bÂČ
      Thanks, I'll write out more details next time