PT3 Maths F1 Chapter 7 Linear Inequalities

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  • เผยแพร่เมื่อ 2 ม.ค. 2025

ความคิดเห็น • 15

  • @pettynasra7384
    @pettynasra7384 หลายเดือนก่อน

    Hi how can we know that we must add or subtract when we move it to the right and left?

  • @mybahari
    @mybahari 4 ปีที่แล้ว +9

    Hi Sir.Can you please do a video on linear inequalities but more focused on problems solving?

  • @ilhamamani8452
    @ilhamamani8452 3 ปีที่แล้ว +1

    This really helps alot. I never understood this topic but now I do. Deserve a like 👍

  • @alimchannel6787
    @alimchannel6787 3 ปีที่แล้ว +1

    Thank you very much,very useful for my examination😁

  • @ragesfireyt
    @ragesfireyt 4 ปีที่แล้ว +3

    I dont understand why you get 11 months can you please explain

    • @mr.psmathslessons9096
      @mr.psmathslessons9096  4 ปีที่แล้ว +3

      from the calculations, we get n > 10, means n must be more than 10, so the minimum (smallest) integer which is more than 10 is 11

    • @ambotrinadelatte6469
      @ambotrinadelatte6469 4 ปีที่แล้ว

      @@mr.psmathslessons9096 I still dont get it. So N is 11 0r? ?:^(

    • @mr.psmathslessons9096
      @mr.psmathslessons9096  4 ปีที่แล้ว +3

      @@ambotrinadelatte6469 according to n > 10, the possible values for n can be 11 or 12 or 13 or 14 and so on...
      among all these possible values, 11 is the smallest, so the answer is
      n = 11

    • @serraaj_h5714
      @serraaj_h5714 4 ปีที่แล้ว +8

      @@ambotrinadelatte6469 okay im gonna assume u as a girl,so sis n>10 so she needs 10 months to get 1450. now the question asks how many months to exceed 1450 so it'll be 11 months or more to exceed rm1450. so the ans is n>10 which is equal to 11,12,13etc.. months. THX

  • @wongchinmin4142
    @wongchinmin4142 4 ปีที่แล้ว +1

    I still not really understand when we need to turn the > and <
    And when we need to draw the arrow o----->

    • @mr.psmathslessons9096
      @mr.psmathslessons9096  4 ปีที่แล้ว +8

      you change the direction of the symbol '' when it involves multiplication or division of negative numbers, otherwise, no change to the symbol. (eg. question 4b in video)
      you need to use the number line method ( arrow) when it involves more then two inequalities ( eg question 5 in video)

  • @jxzneelofficial2172
    @jxzneelofficial2172 2 ปีที่แล้ว

    thanks!

  • @erushii8312
    @erushii8312 4 ปีที่แล้ว

    spm student here! thank you

  • @wongchinmin4142
    @wongchinmin4142 4 ปีที่แล้ว

    ?

    • @serraaj_h5714
      @serraaj_h5714 4 ปีที่แล้ว +1

      HI bro,we need to draw the arrow o-----> and