Art of Problem Solving: 2020 AMC 10 A #23 / AMC 12 A #20

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  • Опубликовано: 24 окт 2024

Комментарии • 34

  • @DatHam
    @DatHam 4 года назад +71

    The left side of my brain is educated now

  • @silverdragon2462
    @silverdragon2462 4 года назад +8

    At the end, you could have just done 3! = 6 since you can permute rotations/reflections and get the same image (the same can not be said for translations, but whatever). So 3 options for the first, 2 for second, 1 remaining = 3 x 2 x 1 = 6, which is basically what you did but u just went through everything. Awesome vid!

  • @malexmartinez4007
    @malexmartinez4007 3 года назад +2

    Can we just assume that we can shuffle H, V, and 180, and all six will work?

  • @matteokimura1449
    @matteokimura1449 4 года назад +5

    For the part with rotations and reflection, could we just have done 3! after realizing that it requires a 180-degree turn, horizontal reflection, and vertical reflection? Or would it be better to check each case to make sure it works?

    • @alexshao4673
      @alexshao4673 4 года назад +4

      3! Is definitely correct, but it's probably safer to check it just in case.

    • @cyxemath6600
      @cyxemath6600 3 года назад

      i just did 3!

  • @thepianist7379
    @thepianist7379 3 года назад +6

    The US needs to clone 10,000 RRs to save the math education, LOL

  • @sagnik5511
    @sagnik5511 3 года назад +4

    My Right ear didn't quite get it

  • @aldricbenalan4755
    @aldricbenalan4755 4 года назад +3

    Nice Work Mr. Rusczyk!!

  • @sallyxu4668
    @sallyxu4668 4 года назад +6

    rip richard's shoulder 0:55

  • @avdrago7170
    @avdrago7170 4 года назад +6

    There’s an audio problem

  • @eric4334
    @eric4334 Год назад +1

    RICHARD YOU ARE THE BEEEEEEEEEEEST

  • @alwysrite
    @alwysrite 4 года назад +4

    understanding the problem is half way there.

  • @nathanrichardson7376
    @nathanrichardson7376 4 года назад +2

    Why did I find this one easier than #12 on the AMC 12???

    • @neil3850
      @neil3850 4 года назад

      Nathan Richardson lmao I agree

  • @gumkiller9734
    @gumkiller9734 3 года назад +1

    Thank you

  • @cyxemath6600
    @cyxemath6600 3 года назад

    This one was honestlly trivial for a amc 12a 20- I just did 3! for the end

    • @alexwang982
      @alexwang982 2 года назад

      yeah it was just wall of text

  • @PHCuber
    @PHCuber 4 года назад +4

    Rip got 139.5, literally miswrote the answer in #19. :(

    • @michaellhan
      @michaellhan 4 года назад +6

      Hey! Your in my aops class. (You said the same thing there.)

  • @michaelqiu8687
    @michaelqiu8687 4 года назад

    I don't understand the question. So sad!

  • @QiaoWan-dy3kl
    @QiaoWan-dy3kl Год назад

    he be showing off his nice hands

  • @myungjinkim1236
    @myungjinkim1236 4 года назад +3

    I got 145.5

  • @gavinwang1636
    @gavinwang1636 3 года назад

    i looooooooooooooooooooveeeeeee iiiiiiitttttttttttt!!!!!!!!!!!!!!!!!!!!!!!!

    • @ShiRuike
      @ShiRuike 4 дня назад

      bruh it says translate to english on the comment

  • @gavinwang1636
    @gavinwang1636 3 года назад

    thaaaaaannnnnnnnk yoooooooooooooouuuuuuuuuuuuuuuu!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  • @lifestyleastherapyafterstr9423
    @lifestyleastherapyafterstr9423 3 года назад

    Self note: 3:56

  • @gavinwang1636
    @gavinwang1636 3 года назад

    math is soooooo fun ;)))

  • @abhyuditatripathi5949
    @abhyuditatripathi5949 3 года назад

    0:55 xD

  • @eric4334
    @eric4334 Год назад

    RICHARD YOU ARE THE BEEEEEEEEEEEST

  • @eric4334
    @eric4334 Год назад

    RICHARD YOU ARE THE BEEEEEEEEEEEST

  • @eric4334
    @eric4334 Год назад

    RICHARD YOU ARE THE BEEEEEEEEEEEST