Trigonometry grade 11: Triangle on CAST

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  • Опубликовано: 27 ноя 2024

Комментарии • 141

  • @nosisekonkabinde7282
    @nosisekonkabinde7282 Год назад +45

    You make me feel like everything isn't hard as we might think all we have to do is analyse and solve.... this is a life and an academical lesson❤️🙏🏻your God sent thank you

  • @LinnaMasombuka-gg4rx
    @LinnaMasombuka-gg4rx 8 месяцев назад +66

    Im in grade 12 coming back to this bc i never understood it and now i do😭you're a life saver kevin!!!!

    • @bdg42699
      @bdg42699 8 месяцев назад +1

      you and me both😭

    • @Meerkat-we8go
      @Meerkat-we8go 8 месяцев назад

      Yup

    • @SkatsKatym-nx6xc
      @SkatsKatym-nx6xc 5 месяцев назад +6

      Wait u got to grade 12 without understanding trig
      Wow life hack

    • @djdanzo206
      @djdanzo206 5 месяцев назад +1

      @@SkatsKatym-nx6xc i got to uni🤣and im back here coz of linear algebra☹

    • @applejuice1233
      @applejuice1233 2 месяца назад

      @@SkatsKatym-nx6xcI’m in grade 11 and I havnt studied any of my subjects

  • @ebenezerlombiso3816
    @ebenezerlombiso3816 3 года назад +87

    Thank you. You are a life saver. The way you teach is so... Words can't explain it

  • @drippysquadrsa5020
    @drippysquadrsa5020 6 месяцев назад +3

    its a shame that past students did not get to know you because, its a modern thing but you are such a god sent kevin, you make everything sound so easy and simple you are by far the best tutor ever.....genius is the only word i could find to describe you yet you are so far from it

  • @tammytailor5308
    @tammytailor5308 2 года назад +11

    like i cant even explain like when u teach its like everything is made clear u tell us the smallest clues which teachers dont even mention thank u so much sir

  • @sweetmadam
    @sweetmadam 2 года назад +8

    Deff purchasing your course for grade 12 (next year) !

  • @manspeezy
    @manspeezy Год назад +8

    Yo Kev, after 15 years I decided to get an Engineering degree... Your channel helped revisiting the nightmare that Trig is and thanks to you I'm finally owning it! Many Thanks

  • @mutualboylwxzi2626
    @mutualboylwxzi2626 3 года назад +15

    you’re a legend, thank you 🤲🏿

  • @TsepoPh
    @TsepoPh 7 месяцев назад +1

    I use to think that this is hard but now I'm flowing thank you god bless you❤

  • @janbotha3190
    @janbotha3190 Год назад +4

    he just knows how to put it in your brain thanks alot

  • @faikhoulie4410
    @faikhoulie4410 2 года назад +6

    my son doing final exams now saying that u are teaching things he didnt know he needed

  • @emmanuelrufai6471
    @emmanuelrufai6471 2 года назад +11

    Thank you so much sir...you explained everything so clearly. Your channel is a definite sub

  • @adriankemp1908
    @adriankemp1908 Год назад +3

    Thank you so much Kevin you helped me understand this topic and how its not as difficult as i thought it was

  • @percymbatha2195
    @percymbatha2195 2 года назад +9

    Thanks its so helpful ❤❤i feel 10 times smarter because of you 😙🤗

  • @josie8785
    @josie8785 Месяц назад

    Kevin is saving me in precal right now... THANKS KEVIN!💖

  • @kalzo_on_gfuel3869
    @kalzo_on_gfuel3869 Год назад +3

    you are saving so many lives 🙏

  • @matidzezwonaka7910
    @matidzezwonaka7910 3 месяца назад

    Thanks you Kevin
    😢you have really helped me over the years
    Continue with your amazing work
    I appreciate you

  • @PLUG_KwonDoe
    @PLUG_KwonDoe Год назад +3

    And Kevin saves the day!!👏👏
    Please keep the videos short🙏

  • @lilhyphie6769
    @lilhyphie6769 2 года назад +5

    You the best teacher wish u could do accounting

  • @nkkhumalo9693
    @nkkhumalo9693 2 года назад +4

    he literally taught all of this in 23 mins ....😮💥

  • @sandramapfumo4167
    @sandramapfumo4167 Год назад +2

    Catching up on trigonometry sir u are a star 🐐🐐😤😤

  • @nasmawisam6889
    @nasmawisam6889 Год назад +3

    thank you for this , I just wish you added more steps

  • @JeanetteLilQuinnJay
    @JeanetteLilQuinnJay 6 месяцев назад +2

    U really are a life saver.
    I had no understanding of this but I have a paper this morning

  • @Leloo.M
    @Leloo.M 3 года назад +9

    Well explained 😜 thank you soo much

  • @apexmva7614
    @apexmva7614 3 года назад +9

    Perfect timing

  • @rellshi3962
    @rellshi3962 2 года назад +6

    these are so helpful, thank you

  • @mfanelondlovu932
    @mfanelondlovu932 Год назад +1

    I have a trig test tomorrow, and this is the only time where maths makes sense 😭

  • @RnwVegas
    @RnwVegas 8 месяцев назад

    You are a life saver ..i appreciate you 🙏

  • @Boka_De_Small
    @Boka_De_Small 17 дней назад +2

    Ngizokushada wena 😅

  • @cannoll_assent
    @cannoll_assent 8 месяцев назад

    You should emphasize of the CAST diagram😊learning a lot from you thanks❤

  • @needbetterwifi3802
    @needbetterwifi3802 2 года назад +2

    Thanks this really helps👊🏻😀 much appreciated

  • @warriorprincess5147
    @warriorprincess5147 2 года назад +2

    Thank u so much ur videos are very helpful ☺️💗💗

  • @pridenkosi9956
    @pridenkosi9956 2 года назад +2

    Great work l enjoy your lessons.

  • @traceyleepaich9145
    @traceyleepaich9145 5 месяцев назад +1

    Honestly math kills me , this vids help me pass

  • @RefilweHolele-fh9mx
    @RefilweHolele-fh9mx 8 месяцев назад

    Thank you Mr kevin❤

  • @ThandolethuKekana
    @ThandolethuKekana Год назад

    Hi sir, you are truly goated

  • @thatim4853
    @thatim4853 2 года назад

    I really thank God for you :)

  • @notmrpronot3179
    @notmrpronot3179 29 дней назад +1

    thanks

  • @DRIVEr517
    @DRIVEr517 3 месяца назад

    kevi kevin mkevovo i learned this thing in an hour

  • @natalietakure19
    @natalietakure19 Год назад

    Great thanks are in order 🎉🤝🏾

  • @lwandlemthimunye06
    @lwandlemthimunye06 Год назад

    Thank youuuuu♥️

  • @BulanngaFuno
    @BulanngaFuno 9 месяцев назад +11

    We're did u find -4

    • @KhuliLetwaba
      @KhuliLetwaba 5 месяцев назад +3

      U use this formula r²=x²+y²

    • @youngboic9790
      @youngboic9790 3 месяца назад +4

      @@KhuliLetwabait’s giving me sqrt34

    • @ntombenhlekhumalo5984
      @ntombenhlekhumalo5984 3 месяца назад +2

      The left side of the x-axis is negative so the 4 has to be negative

    • @lekgonne
      @lekgonne 25 дней назад

      Bruh same​@@youngboic9790

    • @DailenBoogie
      @DailenBoogie 18 дней назад

      x²=5²-3²

  • @Luke-jo2xi
    @Luke-jo2xi 2 года назад +1

    God bless you

  • @fentsemoyana3198
    @fentsemoyana3198 2 года назад

    Legend!

  • @Xx-ee1ui
    @Xx-ee1ui 2 года назад

    thank u so much!

  • @phxntom444
    @phxntom444 2 года назад +2

    Hi Kevin, do you have a video on negative angles?

    • @kevinmathscience
      @kevinmathscience  2 года назад +7

      You will be able to find this in one of these videos:
      ruclips.net/video/XXwMYNorbaI/видео.html
      ruclips.net/video/8QolMTcm8qE/видео.html

  • @zoebenting8090
    @zoebenting8090 2 года назад +2

    Hi sir, how come sin(180-32) isn't equal to -sin(32) but tan(360-32) equals -tan(32)

    • @arinbutkow9021
      @arinbutkow9021 2 года назад +1

      Because tan is negative in quad 4, sin is positive in quad 2

    • @poopy-sq4wp
      @poopy-sq4wp Год назад

      ​@@arinbutkow9021 thank you

  • @renkiemodungwana8141
    @renkiemodungwana8141 2 года назад +1

    Thank you ❤❤❤❤❤❤❤

  • @NtinaNene
    @NtinaNene Месяц назад +1

    Hi sir how did you get-4?

  • @ValentiaKhoza
    @ValentiaKhoza 5 месяцев назад

    Why is 3 position because the co-ordinate is (-3;4)

  • @ayniabdi3831
    @ayniabdi3831 Год назад +1

    dude u make learning fun.why don't u become my father in law😅😂

  • @ThorisoTseke-xg9nj
    @ThorisoTseke-xg9nj Год назад

    6:08 hey sir I don’t understand why we didn’t say 2tan*=3/-4 at (b)

  • @Kuma_RSA
    @Kuma_RSA 3 года назад +1

    Do you have videos on trigonometric functions

    • @kevinmathscience
      @kevinmathscience  3 года назад +1

      Not yet Katleho, will try to add it sometime :)

  • @tomevers23
    @tomevers23 2 года назад

    Verified chad right here✅

  • @onikabuto5064
    @onikabuto5064 24 дня назад

    guys its 1:30 and im writing tmrw at 10.

  • @nonno5104
    @nonno5104 3 года назад +6

    are you a real math teacher and if so why couldn't you be mine

    • @kevinmathscience
      @kevinmathscience  3 года назад +2

      Yato, I do not teach at any school but I rather do private tutoring, online courses and RUclips for you students :)

    • @urglowrecipes
      @urglowrecipes 3 года назад +2

      @@kevinmathscience where do u do private tutoring and how much are you charging

  • @tshidisoishmaelmalele2121
    @tshidisoishmaelmalele2121 6 месяцев назад

    So is it wrong if we divide the 2 to cancel it out

  • @longliv3hero
    @longliv3hero Год назад

    @kevinmathscience sir for the last example wasn't you supposed to draw the triangle at the 4th quadrant?
    and maybe having y as a negative answer

    • @longliv3hero
      @longliv3hero Год назад

      do i always draw my triangle at quadrant 1 if no range is given

  • @nolwazishongwe9003
    @nolwazishongwe9003 Год назад +1

    I wanted to ask how come we didn't divide by 2 to get the answer and multiplied instead for 2tan

  • @xtheblade6189
    @xtheblade6189 Год назад

    TOP G

  • @Regular_Youtuberguy
    @Regular_Youtuberguy Месяц назад

    Ig I’ll learn this in 3 years…

  • @Hoduelle
    @Hoduelle Месяц назад +1

    You see this pray for me please
    Aura credits : granted !!

  • @DelaniMakwakwa
    @DelaniMakwakwa 19 дней назад

    Kevin i really fail to understand how you got the 4 however i know why it is negative but ....

    • @Ndodxo
      @Ndodxo 19 дней назад

      I'm not Kevin but to find 4 you simply use the theorem of Pythagoras rule and you should get your x as 4 but since it's on the negative side you would make it -4 ...hope I could help

  • @Xx-ee1ui
    @Xx-ee1ui 2 года назад +1

    hello, I want to ask when should i use theta inside the triangle and outside the triangle, and I am also confused what is the difference between that?

    • @kevinmathscience
      @kevinmathscience  2 года назад

      Good question, you will always use the theta inside the triangle :) I know it is weird but yes, always use the angle inside the triangle :)

    • @Xx-ee1ui
      @Xx-ee1ui 2 года назад

      @@kevinmathscience oh I see, but if the question ask me to determine the value of theta, do I also need to consider outside the triangle like 360-theta or 180+theta? I am kind of confused about the difference between theta inside the triangle and also the theta after adding 180degrees or minus by 360 degrees

    • @wilpse
      @wilpse 2 года назад

      @@Xx-ee1ui you draw theta outside the triangle, but it always falls inside the triangle nearest to the centre of the Cartesian plain (0;0)

  • @lylaaleo5531
    @lylaaleo5531 Год назад +1

    Why did I get 5.83 instead of 4??

    • @ps_drae
      @ps_drae Год назад

      I think he minused the 5² from 3² and he got 16 which when you square is 4...I think

  • @davidmakhae4315
    @davidmakhae4315 Год назад

    how do you know if it satisfies a certain quadrant

  • @majesticwalrus8905
    @majesticwalrus8905 2 года назад

    Im writing an exam tmrow and ive prepared allot but im still very scared

  • @MuwanwaTshikovha
    @MuwanwaTshikovha 9 месяцев назад

    Why the second triangle is upside down 😮

  • @omtiretsentshudisane7429
    @omtiretsentshudisane7429 19 дней назад

    isn't the 5 at QUESTION 2 suppose to be -5??

  • @luckygoodman8823
    @luckygoodman8823 25 дней назад

    Kevin question for the first video on practicing questions involving construction blah blah blah why did you draw the triangle I the second quadrant instead of the first coz like isn't (90;270) quadrants 1 and 3 so two ticks will be on the first quadrant 😢

  • @cubixrube182
    @cubixrube182 6 месяцев назад

    13:30

  • @HulisaniThendo-dz9vv
    @HulisaniThendo-dz9vv 5 месяцев назад

    14:01 what if Tan is not positive in that quadrant?

  • @chloejantjies3026
    @chloejantjies3026 2 года назад

    Why was cos not included? When we were finding angles

    • @kevinmathscience
      @kevinmathscience  2 года назад

      Hello :) At which time in the video are you referring to?

  • @mihlalimatyeli6031
    @mihlalimatyeli6031 Год назад

    22:20 is tan not negative in the 4th quadrant or does that not apply here

  • @dominicviron5873
    @dominicviron5873 6 месяцев назад

    why do I get square root of 7 for the last question as my hypotenuse????

  • @qamaniciyana3636
    @qamaniciyana3636 2 года назад +2

    How was it a 4 when I got 5.83 on the second pythagoras theorum?

  • @thamisamqayolanda2046
    @thamisamqayolanda2046 Год назад

    Can I ask if how we got the -4 using Pythagoras

    • @ps_drae
      @ps_drae Год назад +1

      He minused 5² from 3² which is 16 and the square root of that is 4 and since it's on the left side of the x axis it's -4

    • @alexamg6675
      @alexamg6675 9 месяцев назад

      @@ps_draethanks I always forget to square root

  • @MR_Uking
    @MR_Uking 6 месяцев назад

    where did that 4 come from

  • @OlwethuSokanyile
    @OlwethuSokanyile 16 дней назад

    I'm a grade 10 kevin😭

  • @SunilChaudhary-ez6nx
    @SunilChaudhary-ez6nx Год назад

    good evening sir so im just confused why when you sqaure root "a" to the power of two, it doesnt just become "a" at 11:56

    • @daynegovindsamy1605
      @daynegovindsamy1605 Год назад +1

      Because you don't need to solve it you just need to have something that represents the angle

    • @SunilChaudhary-ez6nx
      @SunilChaudhary-ez6nx Год назад

      @@daynegovindsamy1605 thank you bro

  • @blubrywlfii5888
    @blubrywlfii5888 5 месяцев назад

    Kevin sir, I don't think you're gonna see this, but please dont stop making jokes (Please)
    Whoever made those jokes aren't okay 🙁

  • @clementmucale2298
    @clementmucale2298 9 месяцев назад +2

    Buy a mike pls

  • @Sandymore-bh8du
    @Sandymore-bh8du Год назад

    Thank you❤

  • @Ethan-rl5kv
    @Ethan-rl5kv 2 года назад

    God bless you