WMA14 01 IAL (Edexcel) P4 Oct 2021 Q8 Integration by Parts, Volumes of Revolution

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  • Опубліковано 16 лис 2024

КОМЕНТАРІ • 12

  • @muhammadhaseeb5389
    @muhammadhaseeb5389 2 роки тому +6

    appreciate the way you explain the revolution volume... your drawings really help. .. thank you so much for all you're doing for us

  • @adolfstalin1497
    @adolfstalin1497 Рік тому

    I differentiated x^2 instead of integrating it. How do I know when to integrate and when to differentiate?

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  Рік тому

      whenever you have the ln function that must always be differentiated as it doesn't integrate into one term and makes life difficult.

    • @adolfstalin1497
      @adolfstalin1497 Рік тому

      @@MrHassaansMathsChannel i meant that i used x^2 as the v because it looks like it's easy to differentiate.

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  Рік тому

      @@adolfstalin1497 yes but when you have ln... that always takes precedence

    • @adolfstalin1497
      @adolfstalin1497 Рік тому

      @@MrHassaansMathsChannel wait so i can only differentiate one of the terms?

    • @shadeblackshark3643
      @shadeblackshark3643 21 день тому

      @@adolfstalin1497 idiot

  • @abdalrahman4969
    @abdalrahman4969 2 роки тому +2

    the pdf index is broken it takes me to proof when i click integration

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  2 роки тому +1

      A2 MATHS P4 - Integration: ua-cam.com/play/PLquyU_6YLv6fhdCGabl4SLU9--WKoKQvs.html
      Thanks for letting me know... I'll fix that asap. The above link will take u there

    • @abdalrahman4969
      @abdalrahman4969 2 роки тому +2

      @@MrHassaansMathsChannel thanks. your content is very helpful i appreciate it

  • @Exothermix
    @Exothermix 2 дні тому

    4 marks seems so little for part b

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  2 дні тому +1

      You will notice that sometimes a difficult question will be given less marks.than you might think to reduce the loss of marks from many students.