Further Trigonometry | Proving The Sine Rule, Cosine Rule & Area of a Triangle using Sine (Grade 9)

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  • Опубликовано: 26 ноя 2024

Комментарии • 53

  • @finnrattray
    @finnrattray 2 года назад +11

    I’m calling it, one of these is gonna be the last q on paper 2 of 2022 edexcel paper.

  • @dodgespecialist1334
    @dodgespecialist1334 4 года назад +20

    So interesting, could you prove the quadratic formula?

    • @TheGCSEMathsTutor
      @TheGCSEMathsTutor  4 года назад +21

      I can do if you want! Shouldn’t take long, nice and quick to make a video on this but you won’t need it for the GCSE! Regardless.. I’ll never turn down an offer to prove the quadratic formula 😁🙏🏼

    • @mrmoleculeg3564
      @mrmoleculeg3564 4 года назад +5

      Hey to prove it complete the square for you.

  • @dacatnextdoor
    @dacatnextdoor 4 года назад +7

    Question: would we get asked about Proving the sine rule, the cosine rule & area of a triangle using sine in the papers?

    • @TheGCSEMathsTutor
      @TheGCSEMathsTutor  4 года назад +7

      DaCatNextDoor One question on this came up as the very last question on one of the exam boards, and one of the others came up in a mock paper for one of the other exam boards.. so it could happen!! It’s a very unique question though I must say but I wouldn’t completely rule it out 😁🙏🏼

  • @shabadkaur6465
    @shabadkaur6465 3 года назад +5

    Awesome flawless explanation SIR!!! Salute to such a great teacher

    • @TheGCSEMathsTutor
      @TheGCSEMathsTutor  3 года назад +3

      What awesome feedback! Love that 🙏🏼 thank you so much for your kind words, so glad to hear it’s useful 😁

    • @shabadkaur6465
      @shabadkaur6465 3 года назад +1

      Sir do you take online classes?

    • @TheGCSEMathsTutor
      @TheGCSEMathsTutor  3 года назад

      @@shabadkaur6465by that do you mean do I deliver tuition lessons?

    • @shabadkaur6465
      @shabadkaur6465 3 года назад +1

      @@TheGCSEMathsTutor Yes sir!

    • @TheGCSEMathsTutor
      @TheGCSEMathsTutor  3 года назад +1

      @@shabadkaur6465 I’m currently fully booked unfortunately but if you follow me on IG I’ve got something coming up in a few weeks/months! 😁👍🏼

  • @vascobishop3359
    @vascobishop3359 Год назад

    Clever. More words will merely spoil the whole issue.

  • @calcpost3641
    @calcpost3641 3 года назад +4

    Sir for proving the area of a triangle do we just assume that the perpendicular height bisects the side CB?

  • @GXT_ROGUE
    @GXT_ROGUE Год назад +2

    Yo, im almost ready for Maths exam on the 13th, just curious when u will start the revision lives and vids before exams

  • @GCSEALevelMaths2025
    @GCSEALevelMaths2025 3 года назад +5

    Great video sir good job!! Really well explained!!

  • @eipimath
    @eipimath 2 года назад +5

    Thanks for sharing! I posted a short video on deriving the law of cosines, It should apply for all angles (acute, obtuse, reflex, negative). Hope to get your thoughts.

  • @senjitsu
    @senjitsu Месяц назад

    thank you literally so much

  • @user-gi3yr1gl7j
    @user-gi3yr1gl7j 4 года назад +7

    hi sir could this sort of question come up in the exam ? eg,, prove this triangle using sine rule?

    • @TheGCSEMathsTutor
      @TheGCSEMathsTutor  4 года назад +7

      sleep Absolutely!! It’s a very unique question that could only come up once though but still worth knowing as the process will help with geometric proof 😁🙏🏼🙏🏼

  • @Sophia-ur1nb
    @Sophia-ur1nb 5 лет назад +3

    Great video 🙌

  • @INeedGooderGrades
    @INeedGooderGrades 7 месяцев назад

    how about proving the quadratic formula and pythagoras

  • @asmaa1853
    @asmaa1853 Год назад

    Thank you 😊

  • @sugarush9095
    @sugarush9095 8 месяцев назад

    When will we need to use this

  • @bigwizard807
    @bigwizard807 2 года назад

    15:41 since we don't have any values of lengths, couldn't we also use TOA since we "have" opposite like we have the hypotenuse? I don't understand how we could know to use COS.

  • @Ziad-pd8me
    @Ziad-pd8me 11 месяцев назад

    Thank you

  • @Luka_c123
    @Luka_c123 2 года назад

    for the area of a triangle you mention that the base of one of the right angel triangles in that one irregular triangle has base "a". wouldn't it be "a-x" as it is not the full length?

  • @sh3llie
    @sh3llie Год назад

    crazyy how this is gcse

  • @shabadkaur6465
    @shabadkaur6465 3 года назад +2

    plz explain the triangle at timestap 5:29 too

    • @TheGCSEMathsTutor
      @TheGCSEMathsTutor  3 года назад

      This is just a different way of looking at it if you were the split the triangle via a different base, it’s not really necessary but it can be done other ways 😁🙏🏼

  • @aishaarshad376
    @aishaarshad376 5 лет назад +3

    Ayy thanks

  • @ibrahimuddin6701
    @ibrahimuddin6701 4 года назад +1

    is this further maths or normal gcse maths?

  • @maisha8283
    @maisha8283 Год назад

    is this for further maths?

  • @memetris6971
    @memetris6971 4 года назад +3

    Is this on the spec

  • @mk.doa1
    @mk.doa1 6 месяцев назад

    Do need to know this for AQA

    • @senjitsu
      @senjitsu Месяц назад

      apparently it's on the spec

  • @licanswok1789
    @licanswok1789 Год назад

    damn what a video

  • @sh3llie
    @sh3llie Год назад

    theres noi way theyre gonna ask u this