Identities Grade 11: Introduction and practice

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  • Опубликовано: 27 ноя 2024

Комментарии • 96

  • @ecre5546
    @ecre5546 2 года назад +120

    I'm a student in Turkey who is in grade 11 now and i think that it's safe to say that i finall got the idea of identities. It sounds more complicated in turkish but you taught me in a way that my own teachers didn't. I have my exam tomorrow and just wanted to let you know that you are incredible!!!

  • @mickeythabile3993
    @mickeythabile3993 2 года назад +303

    When we don’t understand, my teacher shows us these videos... so basically you were my teacher for the term ... and I’m just excited to let you know that you make maths so possible to pass🥺

  • @coddell_c
    @coddell_c 2 года назад +51

    My only regret is I wish I found this channel sooner😔. But now I'll make sure my whole maths class finds you. Thanks a lot Kevin you don't know how many marks you've increased in all our lives. ❤❤❤

  • @Juss-elos
    @Juss-elos Год назад +35

    No because at this point Kevinmath is carrying my grades now! 😭💯

  • @diremakweng6128
    @diremakweng6128 2 года назад +43

    This man is incredible! He deserves more attention.

  • @Tommy_lulu
    @Tommy_lulu 3 года назад +67

    These questions were in my exam 👀 imagine my shock, thank you 😊

  • @nikolai_nik9734
    @nikolai_nik9734 2 года назад +11

    You are a genius I swear with consistent practice these would be way much easier and you showed that , thank you

  • @davidmatsoso2814
    @davidmatsoso2814 2 года назад +22

    Yeah this guy is helping me alot and I hope his channel keeps growing and he keeps helping us

  • @sush1367
    @sush1367 Год назад +8

    You are the best math teacher in the whole entire world helping students 👏 love ya

  • @djepicblue9888
    @djepicblue9888 2 года назад +14

    Ur really a good teacher ,THANK YOU ×1MILLION!!!!

  • @siyabongakutloano9835
    @siyabongakutloano9835 8 месяцев назад +14

    From 20% to 47% .😢😮

    • @N.E.S.W
      @N.E.S.W 3 месяца назад +2

      Improvement is good where you at now...??

  • @safiyyahabrahams2236
    @safiyyahabrahams2236 Год назад +3

    i swear you are a life saver you are literally my teacher

  • @Fx_predator
    @Fx_predator 2 года назад +15

    Thank you.
    You explain it much better and in more simpler way❤️💯

  • @ebenezerlombiso3816
    @ebenezerlombiso3816 3 года назад +22

    Can you go over more of this please, THANK YOU

  • @kerenkotolo
    @kerenkotolo 7 месяцев назад +4

    Thank youuuu sir Kevinn!! You're saving lives😭😭my teacher did a worked example and got a different answer from the book then he said the book was incorrect but I wasn't convinced cause the way my sir found that answer was kinda suspicious to me and wasn't making sense so I told myself when I get home I'll just watch sir kevin then do it again until I found the book answer and then just a few mins into the vid, I stopped to do my example and I was able to to find the exam answer as the book in less than 3 mins! Thank you so much, you opened my brain on this topic

  • @Ashley.Gamuchirai
    @Ashley.Gamuchirai 3 года назад +10

    Thank you this helped so much for my upcoming exam

  • @sineh9140
    @sineh9140 Год назад +1

    I WISH YOU THE MOST BLESSED BLESSINGS KEVIN😭

  • @sfundozondo2823
    @sfundozondo2823 2 года назад +8

    amazing video the last two i did on my own using the concept you had tough ...thank you so much ...i will subscribe now.

  • @MudauNdivhuwo
    @MudauNdivhuwo 3 месяца назад

    This man helps me all the time l watch this videos, you're the best Kevin

  • @pr0dbysix
    @pr0dbysix 8 месяцев назад +8

    it’s tuesday night and i’m writing friday morning, am I cooked chat?

  • @nkululekomicheal6155
    @nkululekomicheal6155 2 года назад +1

    On number 4 Kevin you can start at 1 as sin Squared theta +cos squared theta and the you solve its from there is minus of the sin squared theta and would become cos squared then minus sin squared theta divided by the denominator of sin theta X cos theta it much easier that way

    • @kevinmathscience
      @kevinmathscience  2 года назад +1

      Oh I see what you mean :) Yes because then it becomes cos^2 - sin^2 / sincos
      And then you split it up to become cos/sin - sin/cos which is then cos/sin - tan. Nice!! :)

  • @BaoLe-vt7si
    @BaoLe-vt7si 2 года назад

    2/ 11:53 minus 1+sin.x/cos.x both sides => cos.x/1+sin.x = 1-sin.x/cos.x, next multiply LCM both sides => cos^2x = 1 - sin^2x.

  • @oyamanojoko7287
    @oyamanojoko7287 18 дней назад

    May the Lord Jesus bless you Mr Kevin❤🙏🙏❤you're a great help.

  • @sizwekhumalo7829
    @sizwekhumalo7829 2 года назад +3

    You are best you always do the interesting questions

  • @NomusaMtshali-w8p
    @NomusaMtshali-w8p Год назад

    Thank you Kevin you're the best teacher ever 💎🥺🤞🏾

  • @EvenBruno
    @EvenBruno 5 месяцев назад

    Kevinmathscience is the GOAT

  • @TheBeanDiarries
    @TheBeanDiarries Год назад +2

    You are honestly the best-Thank you❤️

  • @btthekiller4359
    @btthekiller4359 Год назад +1

    2023 and you still saving life's

  • @BalindwaThompson
    @BalindwaThompson 7 месяцев назад

    You are the greatest teacher my guy

  • @sohailhusain1700
    @sohailhusain1700 3 года назад +9

    thank you so much this helped me alot

  • @mikaeladebruin3576
    @mikaeladebruin3576 2 года назад +4

    I love your videos,it helped me a lot.
    Thank u so much

  • @mabenagaming1918
    @mabenagaming1918 18 дней назад +5

    its chai 😔

  • @owe_m
    @owe_m 2 года назад +2

    Thank u so much
    You are a good teacher

  • @NgohStella-ui8fz
    @NgohStella-ui8fz 10 месяцев назад

    I really thank you sir you video was of great help to me cuz l was not understanding anything in this topic .thank you once more .just hope you will continue to help those in need of you 🎉🎉

  • @majurpanchol1335
    @majurpanchol1335 2 года назад +3

    Very interesting indeed

  • @zugomdingi2933
    @zugomdingi2933 7 месяцев назад

    I know you might not respond sir but thank you for changing my level2 into level6

  • @philphoswa-fh2tu
    @philphoswa-fh2tu Год назад +2

    Thank you so much, this is really helpful✌️❤️👊👍

  • @pumpkineater.88
    @pumpkineater.88 Месяц назад

    Kevin the man you are🔥🔥🐐🐐

  • @shinraidekiru257
    @shinraidekiru257 Месяц назад

    Please explain the concept of fractions like what are the conditions when you should cross multiply and when you should do direct multiplication cause i thought whenever you see two fractions whether you add or subtract or divide or multiply you just cross multiply

  • @victorshow8980
    @victorshow8980 7 месяцев назад

    You the best sir you make my life easy😊

  • @prudenceezu9113
    @prudenceezu9113 3 года назад +6

    Hi thank you so much for your hard work.Are you gonna make videos about trig graphs

    • @kevinmathscience
      @kevinmathscience  3 года назад

      Hello! Not sure when I will be uploading to RUclips but you can checkout my course. Try it for free for 7 days. It has trig graphs :) www.kevinmathandscience.com/7dayW

  • @keke_x
    @keke_x 2 года назад +3

    Can you please do a video about Trigonometric Function🥺🙏

  • @asisipholengisi8188
    @asisipholengisi8188 2 года назад

    When there's a division sign and we want to multiply, when do we use the flip over cross multiplication method? And when do we use the tops x tops, bottoms x bottoms? Like on the 1st step of the first question and the 5th step of the same question.

  • @FaithAline-zg7ru
    @FaithAline-zg7ru 7 месяцев назад

    This is the best explanation

  • @roberthawes8463
    @roberthawes8463 2 года назад +2

    Legend Kevin!

  • @pearlhotto949
    @pearlhotto949 Год назад +1

    Thank you soo much Kevin❤

  • @desangovender8166
    @desangovender8166 2 года назад

    if any DNC/DNK student comes here one day just know i was saved by kevin maths and science.........

    • @Rabbithopper12
      @Rabbithopper12 4 месяца назад

      Previous DNC student 😭🤞 ms exlerben needs to LEAVE

  • @Carine.Bukasa-jp8lo
    @Carine.Bukasa-jp8lo 3 месяца назад

    Good evening sir.
    I tried to work on some grade 11 questions.
    I am rewriting mathematics on November so know I am practicing trigonometry but I came across this trigonometry identity : Rcos(x-a)=cos(x)+tan(a).sin(x)
    Can you please explain how this identity works?

  • @khutjoemily4757
    @khutjoemily4757 2 года назад +1

    Thank you so much

  • @ofentsematjila5585
    @ofentsematjila5585 3 года назад +1

    i am glad it helped.

  • @athenkosisiliziwekiti7417
    @athenkosisiliziwekiti7417 2 года назад +1

    Thank you so much 😭😭😭😭

  • @alexandermarinov4048
    @alexandermarinov4048 Год назад +2

    Not all heroes wear capes

    • @samia_63
      @samia_63 11 месяцев назад +1

      💯💯

  • @JesameSandalamo
    @JesameSandalamo 2 года назад +2

    I couldn’t understand, now I do

  • @Promise0529
    @Promise0529 Год назад +1

    Hey Kevin...why did you scratch out the ^2 in the first example

  • @Gifity_56
    @Gifity_56 5 месяцев назад

    Someone give Kevin his Flowers🎉

  • @maskeddanger6302
    @maskeddanger6302 3 года назад +4

    thanks teach but aint you got any vids on general solutions

    • @kevinmathscience
      @kevinmathscience  3 года назад +1

      I will upload this week. Hope its not to late for a test!

  • @keam6717
    @keam6717 9 месяцев назад

    Good bless you 💪

  • @sudays_Issa
    @sudays_Issa 2 года назад +2

    helped indeed😇😇😇

  • @just.a.browser
    @just.a.browser 10 месяцев назад

    thank u very much!!

  • @Rea.M
    @Rea.M 8 месяцев назад

    for the last question where we have to prove tan = sin/tan ; is attempted it before getting the steps and wrote it as a whole as cos/sin =tan/1 and had trouble making L.H.S= R.H.S
    PLEASE HELP , I am trying to master this concept for June examinations!

  • @SoroushDanesh-hk6lm
    @SoroushDanesh-hk6lm Год назад +1

    Second tip is wrong! be careful everybody!

    • @this.isntorion
      @this.isntorion 6 месяцев назад

      Which second tip, and howcome?

  • @clintonubawuchi3200
    @clintonubawuchi3200 Год назад

    i dont understand how you did that at 14:28. please explain oit or refer me to a video explaining it

  • @sibongilendlovu536
    @sibongilendlovu536 Год назад

    ❤❤🎉❤❤

  • @LindiweMdu-px2ho
    @LindiweMdu-px2ho Год назад +1

    Help

  • @ZiyandaXilaveko-jz5jt
    @ZiyandaXilaveko-jz5jt 8 месяцев назад

    It's visible try to zoom pls🤓

  • @YayaPohlwana
    @YayaPohlwana Год назад

    Am lost when it comes to common fact😭😭

  • @KhensaniLubisi-kz4nr
    @KhensaniLubisi-kz4nr 8 месяцев назад +1

    I don't understand

  • @BlaqBoi-1022
    @BlaqBoi-1022 Год назад

    Do you have whatsapp groups

  • @Gomie01
    @Gomie01 2 года назад +1

    Hello
    Can you please help with this sum
    1-2sin^2x 1-tanx
    ------------------------ = -------------
    1+2sinx.cosx 1+tanx
    Thank you

    • @kevinmathscience
      @kevinmathscience  2 года назад

      Hello are you grade 11 or 12? It changes my approach.