Product of chords?

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  • Опубликовано: 30 июн 2024
  • This short animation shows chords connecting n equally space points to one of those points on a unit circle and computes the product of the chord lengths. Do you have a conjecture based on this? Can you prove it?
    If you’re interested, check out the related video at • Products of Chords in ... .
    This animation is based on a famous problem that has been discussed in numerous places. In particular, a great reference for this problem and related ones (with a fantastic bibliography) is the source Chords of an Ellipse, Lucas Polynomials, and Cubic Equations in Issue 8 of the 2020 American Mathematical Monthly (doi.org/10.1080/00029890.2020...) by Ben Blum-Smith and Japheth Wood. You can also find the source here: arxiv.org/abs/1810.00492.
    #math #mathvideo #manim #circle #chords #visualproof #trigonometry #sine #cosine #tangent #rootsofunity #complexanalysis #complexnumbers #products #geometry
    For more about using manim, see www.manim.community/.

Комментарии • 19

  • @muffinmainia4340
    @muffinmainia4340 12 дней назад +65

    I’d love to see an explanation/proof for this!

    • @Living_Murphys_Law
      @Living_Murphys_Law 12 дней назад

      ruclips.net/video/8GPy_UMV-08/видео.htmlsi=8I89MK0V8FCePpXx

    • @MathVisualProofs
      @MathVisualProofs  12 дней назад +9

      See linked video. 😀

    • @YouTube_username_not_found
      @YouTube_username_not_found 10 дней назад +2

      Check also this video!
      Title: Proving Grant's little theorem.

    • @thenationalist8845
      @thenationalist8845 День назад

      ​@@MathVisualProofsit is called the power of point with respect to circle
      Am I correct??

  • @brendankoelsch4461
    @brendankoelsch4461 12 дней назад +36

    The Chanel name covers it, but for anyone who’s wondering the bottom number says “chord length product”

    • @MathVisualProofs
      @MathVisualProofs  12 дней назад +6

      Ugh. One day I’ll figure out how to optimize for all the RUclips shorts clutter. Thanks.

  • @quantumbuddha777
    @quantumbuddha777 12 дней назад +4

    Wow! Very cool! I was not aware of this property of chords.

  • @YouTube_username_not_found
    @YouTube_username_not_found 12 дней назад +3

    Grant's liitle theorem!

  • @GovindShukla-cc6ul
    @GovindShukla-cc6ul 12 дней назад +8

    Best content creator 😎❤

    • @bradleyday2777
      @bradleyday2777 6 дней назад +1

      At first I thought you said best concert creator, and I’m like, well yes, with the music, and the “chords”, absolutely.

    • @GovindShukla-cc6ul
      @GovindShukla-cc6ul 6 дней назад

      @@bradleyday2777 🤣🤣🤣🤣🤣🤣🤣🤣

  • @catmacopter8545
    @catmacopter8545 12 дней назад +4

    I wonder if there is a proof for this using roots of unity! Each chord would have length of abs(1-[root]).

  • @GenericInternetter
    @GenericInternetter 12 дней назад +1

    Huh???

  • @vennstudios9885
    @vennstudios9885 12 дней назад +2

    Wait so
    4 points has
    2×(√2)² soo maybe which us 4 chords
    So if we back track
    The chord would be a triangle with a base of 1+|cos120| or 3/2 and a height of √3/2 so Pythagorean theorem it comes out as 9/4+3/4 which comes down to 3sq
    Then √3
    Then realization kicks in
    I'm not smart enough to conclude anything with this
    Google is my trusted navigator

  • @user-yh9kk6kz3b
    @user-yh9kk6kz3b 12 дней назад +2

    😎🆒🆒