Calculus 3, Session 21 -- Absolute (global) max/min

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  • เผยแพร่เมื่อ 18 พ.ย. 2024

ความคิดเห็น • 7

  • @Alexamedellina
    @Alexamedellina ปีที่แล้ว +1

    23:27 I find myself singing your songs during my exams and they never fail to make me smile
    Thank you and may God bless you

    • @BeardMeetsCalculus
      @BeardMeetsCalculus  ปีที่แล้ว +1

      Songs are surprisingly useful ways to remember things, and also to have fun. Good luck on your exams.

  • @abdullahebrahim4045
    @abdullahebrahim4045 3 ปีที่แล้ว

    @ 15:00 Professor, we did the end point and added h(-2,0) to the list
    Okay I understand that but it’s a circle so what about when x is zero
    Then we’ll have h(0,-2) and h(0,2)
    With much thanks and math love
    Kind regards

    • @BeardMeetsCalculus
      @BeardMeetsCalculus  3 ปีที่แล้ว +1

      The key is that we are transforming it from a problem which is two-dimensional to a problem which is one-dimensional (a good trick!). And in this case the way that we are breaking it up the left and right ends are acting as the boundary of the one dimensional problem.

    • @abdullahebrahim4045
      @abdullahebrahim4045 3 ปีที่แล้ว

      @@BeardMeetsCalculus
      “You pay good money for this”
      I fell of my chair
      Free quality content like this on TH-cam, thank you for uploading.
      Bless you Prof

  • @abdullahebrahim4045
    @abdullahebrahim4045 3 ปีที่แล้ว

    One more question
    See when you plug in the values from the list
    I see that you sometimes plug it in the function of boundary equations, as in the square or triangle, which makes sense as it makes life easy
    But you sometimes put it in the deferential of that function
    I’m having a hard time making sense of that(as I get different values)

    • @BeardMeetsCalculus
      @BeardMeetsCalculus  3 ปีที่แล้ว +1

      Hmm. If I am plugging that into a derivative it is a mistake. In general you should either plug it into the function as given, or a reduced form of the function (e.g. on the boundary).