But Why Does Feynman's Trick Work?

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  • Опубликовано: 6 сен 2024

Комментарии • 19

  • @ruroruro
    @ruroruro 7 месяцев назад +14

    5:46 "now is the first time that we get some restrictions for f"
    I think that this wrong, because the mean value theorem also imposes some requirements on f.

    • @ScrewY0UguyS
      @ScrewY0UguyS 7 месяцев назад +6

      Correct. To be precise, it actually requires that f(x) is continuous and diffirantiable on (a,b).
      Also, the formula presented in the video I believe is wrong. F(x,b)-F(x,b+h) should be in fact F(b,t)-F(b+h,t), since we're intagrating with respect to x.

  • @primusvonquak9785
    @primusvonquak9785 7 месяцев назад +13

    Your channel is SOOOO underrated and underappreciated! Love your videos, keep going! ❤

  • @maths_505
    @maths_505 7 месяцев назад +6

    Hell yeah!
    We doin proofs now!!!

    • @samning4141
      @samning4141 7 месяцев назад +4

      Two of my favorite creators here

  • @putskan3377
    @putskan3377 7 месяцев назад +3

    In 3:38 I believe it should be F(b+ deltab, t) - F(b, t)
    Thanks! amazing video

  • @themibo899
    @themibo899 7 месяцев назад +9

    why at 1:15 do you say I (as in integral) is both a function of x and t when it is clearly only a function of t since x is a dummy variable and will play no role in the final result?

    • @sashaguzman7792
      @sashaguzman7792 7 месяцев назад

      upper and lower bounds of integral also depend of x, so it will end up being a func5ok of the parameter t, and x as well

    • @themibo899
      @themibo899 7 месяцев назад +6

      @@sashaguzman7792 what no they depend only on t, when you carry out the integration x will go away, you're not calculating an antiderivative here

  • @JoaoPedroFernandesMoura
    @JoaoPedroFernandesMoura 7 месяцев назад +1

    Excellent video!

  • @nikolaivsevolodovich
    @nikolaivsevolodovich 7 месяцев назад +1

    love the video quality!

  • @nowhereman000
    @nowhereman000 7 месяцев назад +1

    Love ur determination ❤

  • @profdc9501
    @profdc9501 7 месяцев назад +1

    Wikipedia: Leibniz integral rule

  • @alejandropulidorodriguez9723
    @alejandropulidorodriguez9723 6 месяцев назад +1

    splendid

  • @danielc.martin
    @danielc.martin 7 месяцев назад +3

    Love measure theory ❤

  • @nrrgrdn
    @nrrgrdn 7 месяцев назад

    I'll subscribe just for the name of your channel.

  • @Mr_Mundee
    @Mr_Mundee 7 месяцев назад

    why did u private your most recent video, mistake?

    • @Brodosomemaths
      @Brodosomemaths  7 месяцев назад +1

      There's been 15s of poorly adjusted sound. Got rid of it:)

    • @Mr_Mundee
      @Mr_Mundee 7 месяцев назад

      @@Brodosomemaths dziękuje.