When Do I use Sin, Cos or Tan?

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  • Опубліковано 16 гру 2024

КОМЕНТАРІ • 642

  • @luckest13th
    @luckest13th 7 років тому +287

    Learned more in the first three minutes than a whole year in precalculus...

    • @AllenMorrisColonel
      @AllenMorrisColonel  7 років тому +14

      klyph bradeken Thanks for your kind words. Keep-a-Learning!

    • @garvrathore8862
      @garvrathore8862 4 роки тому +5

      Kya bata rhe hoooooooo

    • @aayush_7037
      @aayush_7037 4 роки тому +4

      @@garvrathore8862 indian spoted

    • @class11thsarim46
      @class11thsarim46 4 роки тому +5

      @@aayush_7037 Indian spoted 😂😂😂

    • @braylonjudson3815
      @braylonjudson3815 3 роки тому

      You prolly dont give a shit but does anyone know a tool to get back into an Instagram account??
      I stupidly forgot my password. I would love any assistance you can offer me.

  • @kb2007xox
    @kb2007xox 6 років тому +233

    For all those complaining about "short video" ... consider most school classes are twice the length and some uni or college lectures can be 2 hours long. So yes, relatively speaking, video is short!

  • @amishasinha7710
    @amishasinha7710 5 років тому +66

    Very helpful, no one will teach from pure basics!!!! Thanks a lot!!!!

  • @itspersonal54
    @itspersonal54 8 років тому +58

    Thank you Allen! I finally had the chance to watch your video and I get it now. I'm able to figure out when to use sin, cos, and tan, and I'm feeling confident enough to do the work assigned by my geometry teacher. You're a big help, keep making videos!

    • @AllenMorrisColonel
      @AllenMorrisColonel  8 років тому +3

      +Vincent Fenty Perfect!!!! Thanks for asking the question and letting me know that it helped.... M

    • @liyunzhang3256
      @liyunzhang3256 7 років тому +2

      Allen Morris lo

  • @asadullahgraphicdesigner2304
    @asadullahgraphicdesigner2304 4 роки тому +3

    I have watched more than 20 Videos in 6 months, but no one teaches this much Good as you teach. Finally I got this. THANK YOU

    • @BigSpringHigh2020
      @BigSpringHigh2020 4 роки тому

      You are spot on... Your kind words are appreciated. Keep on enCouraging others.

  • @benjamincabnal
    @benjamincabnal 2 роки тому +10

    This was SUPER helpful! I felt very confident in knowing when to use each function by the end of this video. Great job explaining

    • @FromNewToKnew
      @FromNewToKnew 2 роки тому

      Excellent and thank you for letting me know. Keep-a-Learning!

  • @alfadilatom6012
    @alfadilatom6012 6 років тому +2

    We are grateful for ur solidarity and assistance to orphans and poor students of Nuba Mountains . we beg more help in areas of gradient ,reflection, rotation and congruence .our Almighty father bless u with more knowledge.

    • @AllenMorrisColonel
      @AllenMorrisColonel  6 років тому

      Your comments warm my heart and I assure you, I am working on this. Please wrote to me at allenmorris@yahoo.com and I will share some information with you about my efforts. I believe that you will like what I am doing...

  • @Miss._.Destiny1
    @Miss._.Destiny1 4 місяці тому +1

    Despite how old this video may be, it helped me incredibly with finally truely understanding sin, cos and tan. Thank you dude

    • @FromNewToKnew
      @FromNewToKnew 4 місяці тому

      Thank you for your kind words.

  • @gonzaloluna1989
    @gonzaloluna1989 6 років тому +12

    Starting to make sense now. Thanks. Loved your relaxed and clear voice.

    • @AllenMorrisColonel
      @AllenMorrisColonel  6 років тому +1

      Thank you for your kind comments.... I am working a whole new series now...

  • @webextrax
    @webextrax 3 роки тому +2

    Very well explained ! Save time in life and watch this video !!

  • @gaokhao2984
    @gaokhao2984 5 років тому +2

    You are genius....., If you are a professor your students are definitely brilliant

  • @RezaulKarim-zr6wm
    @RezaulKarim-zr6wm 3 місяці тому

    Can't express by words how helpful this video was!! Thank you so much

    • @FromNewToKnew
      @FromNewToKnew 2 місяці тому +1

      You are most welcome. Thank you for letting me know.

  • @1973jdmc
    @1973jdmc 7 років тому +12

    Sir you are brilliant- thank you so much for your natural teaching talent-

    • @AllenMorrisColonel
      @AllenMorrisColonel  7 років тому +1

      1973jdmc Thank you for your kind words. Keep-a-Learning!

  • @rogergarside65
    @rogergarside65 6 років тому +23

    Some Old Hags Can't Always Hide Their Old Age; the Australian way of remembering these functions

    • @AllenMorrisColonel
      @AllenMorrisColonel  6 років тому +2

      Thanks Roger. Keep-a-Learning and keep sharing information!

  • @deniscotter525
    @deniscotter525 3 роки тому

    This is the best explanation of basic trigonometry I've found. Excellent

  • @gracecarley125
    @gracecarley125 7 років тому +23

    Thank you Allen! Learned this in 7th grade and just needed a refresher for my high school placement test tomorrow. Great work

  • @Brozer4x4
    @Brozer4x4 7 років тому +3

    Great video! Very informative and I like the fact that it starts from the very beginning for people new to the subject. :)

    • @Allenmmorris
      @Allenmmorris 7 років тому +1

      DEATH 5UCKS Thank you for your kind words. I simply answered the question of one of my students and it seems that many others had the same question. Keep-a-Learning!

  • @marcq3921
    @marcq3921 6 років тому +3

    Thank you for your thorough explanation on this subject. Much appreciated!

  • @alfadilatom6012
    @alfadilatom6012 6 років тому +2

    Thank u teacher , u assisted us a lot in Nuba mountains

    • @ColAllenMMorris
      @ColAllenMMorris 6 років тому

      Thank you for your kind words. I am glad that I could help. Let me know how I can be of service on other things. Cheers from west Texas!

  • @noobsabotado5814
    @noobsabotado5814 2 роки тому

    Omg, thanks a lot, literally no one teached me when to use, i searched in my language a lot (portuguese), and i find nothing, thanks i know english, found your video and learned.
    Thanks a lot for the help, i just want to know when to use :), super helpful, now i know :)

  • @payupich
    @payupich 7 років тому +4

    Hey man thank you very much you are a very clear and slow with your information in a good way.

    • @AllenMorrisColonel
      @AllenMorrisColonel  7 років тому +2

      Thanks Chris. Keep-a-Learning. A few folks had a good question that I did not cover well in this video so check out this one for a few more tips...
      ua-cam.com/video/b1e69PHTH_U/v-deo.html

  • @raiyanhossain8428
    @raiyanhossain8428 Місяць тому

    Despite being 8 years old , this video is crazy informative and well explained

  • @asmaramelody3153
    @asmaramelody3153 6 років тому +5

    You relieved my stress. Thank you!

    • @AllenMorrisColonel
      @AllenMorrisColonel  6 років тому +2

      You are welcome. Thank you for letting me know. Good luck and keep in mind that Calm will Rule the Day!

  • @gertrudelewis2771
    @gertrudelewis2771 2 роки тому +1

    Thanks much Mr . Morris , you helped me a whole bunch looking forward to more videos

  • @kisalkeheliya
    @kisalkeheliya 11 місяців тому

    Really thank you sir for helping the students with a clear understanding and precisely helping them to keep it on their memory.
    Appreciate it.❤

  • @lalminlianxymte114
    @lalminlianxymte114 6 років тому +9

    Very clear teaching thank you.

  • @Imran_rph
    @Imran_rph 6 років тому +4

    Sir u r good.This is the explanation which I want but no one could understand me like u.keep making videos like this.
    Thank u

  • @monsterjazzlicks
    @monsterjazzlicks 8 років тому +3

    I think I should have watched this particular tutorial in the TRIS series FIRST of all! For me it offers the best introduction.

  • @genevievetauro6531
    @genevievetauro6531 7 років тому +14

    Very well explained. Thank you

  • @MuMu-zk2jk
    @MuMu-zk2jk 3 роки тому

    Really a great way to remember, most of us are confused about these for many years.

  • @rbg11171950
    @rbg11171950 4 роки тому +1

    Allen, I enjoyed this tutorial thoroughly.

  • @yazmaragonzalez8373
    @yazmaragonzalez8373 5 років тому +1

    the most helpful video I have found so far! thank you so much, your video answered all my questions!

    • @BigSpringHigh2020
      @BigSpringHigh2020 5 років тому

      I agree! Thanks for speaking up and being kind.

    • @AllenMorrisColonel
      @AllenMorrisColonel  5 років тому

      Thank you for letting me know. Your words are enCouraging. This video came from a response to a question. It pays to listen..

  • @jbgood7694
    @jbgood7694 7 років тому +11

    Thanks. This was explained very well and the numerous examples helped reinforce the lesson.

    • @AllenMorrisColonel
      @AllenMorrisColonel  7 років тому

      J Bgood thank you for your kind comments. I'm glad that I could help.

  • @ashleysharma8660
    @ashleysharma8660 7 років тому +171

    SOHCAHTOA = Some Old Hippie Caught Another Hippie Tripping Over Acid

    • @Allenmmorris
      @Allenmmorris 7 років тому +4

      Ashley Sharma Thank you. I'm glad that I could help...

    • @milliegreer4815
      @milliegreer4815 7 років тому +9

      Silly old hag cracked all her teeth on apples

    • @baruchben-david4196
      @baruchben-david4196 5 років тому +1

      Old houses always have old attics.

    • @idek9600
      @idek9600 5 років тому +4

      We learnt it as “sex on hard concrete always hurts the others arse”

    • @james77011
      @james77011 5 років тому

      😹😹

  • @melissarocha9014
    @melissarocha9014 3 роки тому +2

    thank you so much for this! i have a test in an hour and this is just the refresher i need :)

    • @AllenMorrisColonel
      @AllenMorrisColonel  3 роки тому

      Thank you for letting me know and I hope that you did well. Keep-a-Learning!

  • @wallacesirenavn
    @wallacesirenavn 5 років тому

    Good explanation about when and how to use the soh cah toa. Loved it very much

  • @josedelgado4012
    @josedelgado4012 2 роки тому

    very good explanation for bigginers. keep the good work as simple it is to understand.

  • @timothydisinger9414
    @timothydisinger9414 3 роки тому

    Pipe fitter here , this is an excellent tutorial Sir 👌

  • @kamurudeenka461
    @kamurudeenka461 4 роки тому +1

    Brilliantly explained

  • @Monstrikster
    @Monstrikster 5 років тому +2

    Great job

  • @Gail-gs9jd
    @Gail-gs9jd 3 роки тому

    It means so much when someone goes over the basics first

  • @benjaminblanchard8822
    @benjaminblanchard8822 6 років тому +4

    I like to think of these things like they're a part of a socially cruel friendship circle, where you've got these super cool kids in school and their names are opposite, adjacent and hypotenuse. Where opposite is the coolest and everyone one wants to be his friend, so he's always on top no matter what, whether he's hanging with adjacent or hypotenuse. Then you got adjacent, she's sorta cool but not as cool as opposite, no one can be like him. So she's only on top when hypotenuse is around. Then you got hypotenuse, they're that one friend that everyone's like, "why do you hang out with this person they're so long and oblique". So hypotenuse never knows what it's like to be the numerator, cause they're always on bottom. But don't worry we need you around hypotenuse, you're the longest one of us all.

  • @AnilPandey-gu6tc
    @AnilPandey-gu6tc 5 років тому +3

    Big fan from INDIA,, Love the way you explain

    • @BigSpringHighSchool2019
      @BigSpringHighSchool2019 5 років тому

      Thank you. About 90 hours per day is spent watching my UA-cam Channel. 40-50 of that is out of India. I like that!

  • @youngirab3913
    @youngirab3913 4 роки тому

    This video helped me a lot. You explained it better than my teachers.

    • @AllenMorrisColonel
      @AllenMorrisColonel  4 роки тому

      Excellent. I am glad that I could help.
      Thanks for letting me know.

  • @marisaowens7706
    @marisaowens7706 Рік тому

    Thank you so much for your help! I loved that you had a lot of examples and practice questions. I got it down now.

    • @AllenMorrisColonel
      @AllenMorrisColonel  Рік тому

      You are most welcome. Thank you for letting me know. Keep-a-Learning!

  • @rabbisheryl9613
    @rabbisheryl9613 5 років тому +1

    Thanks SO MUCH!!! I've been trying to get this straight in my mind for DAYS!!!! this is just what I needed :-) It is a good "sine" for my math success!!

    • @allenmorris9440
      @allenmorris9440 5 років тому

      You are very welcome. Thanks for letting me know. Keep-a-Learning!

  • @Urawizardharryy
    @Urawizardharryy Рік тому

    i finally understood how to use sin cos and tan!! Thank you sooo muchh!!!!

    • @FromNewToKnew
      @FromNewToKnew Рік тому

      You are most welcome. Thank you for letting me know.

  • @elihernandez7891
    @elihernandez7891 7 років тому +41

    You explain this better than my teacher.

    • @lurisleague406
      @lurisleague406 6 років тому +5

      exactly. my teacher thinks we're all einsteins and shit. he just goes through tasks with no explaining, he's just like "and then you do this and this" while no one is paying attention because it's impossible to understand unless you already know it before. youtube is definitely 5 times better than spending hours in math class, honestly.

    • @angelomendoza6666
      @angelomendoza6666 6 років тому +2

      Luris League same

    • @Abu_Rayhan
      @Abu_Rayhan 6 років тому +2

      That's why we are here

  • @roccovitiello7031
    @roccovitiello7031 7 років тому +4

    A very good demo

  • @muhammadabubakarzia1998
    @muhammadabubakarzia1998 10 місяців тому

    This concept was a mystery for me before watching your video
    Thanks

    • @AllenMorrisColonel
      @AllenMorrisColonel  10 місяців тому

      You are most welcome. Thank you for your kind words. They encourage me to keep-a-going... Allen

  • @dieforyou8857
    @dieforyou8857 4 роки тому +2

    How do I know where the theta is though?
    I understood everything except that part.

  • @kakoly7697
    @kakoly7697 4 роки тому +1

    You explained so well👍
    Thanks for your explanation 😊

    • @AllenMorrisColonel
      @AllenMorrisColonel  4 роки тому

      You are most welcome. Thank you for your kind comments. Keep-a-Learning!

  • @solomonpopkey7207
    @solomonpopkey7207 7 років тому +5

    Great video very helpful keep up the good work👍👍

  • @jamal12554
    @jamal12554 5 років тому +1

    This made me feel trigonometry!!!!!! Thank you so much....😊😊😊

  • @adminspiderman5378
    @adminspiderman5378 3 роки тому +1

    2021 and this video is still helping

  • @davisexe6090
    @davisexe6090 4 роки тому +1

    Learned more in this video then an hour and a half class

  • @guenila
    @guenila 11 місяців тому

    Very thorough explanation, just maybe a bit too stretched in time for me. It makes calculating missing angles appear really difficult, for me at least, since it's taking so long in the video to finally answer the question on how to calculate an angle if 2 sides are known.

    • @FromNewToKnew
      @FromNewToKnew 11 місяців тому

      This video came at the request of several who had watched my video on Sin, Cos, and Tan. They said, "I get it, but still do not know when to use which one." I will dig up the link to the video that just goes over how to use the functions and does not really cover when to use which one.

    • @FromNewToKnew
      @FromNewToKnew 11 місяців тому

      ua-cam.com/video/J9mkYrnqm3c/v-deo.htmlsi=Bgot1RGusXMLjJZ8

    • @FromNewToKnew
      @FromNewToKnew 11 місяців тому

      ua-cam.com/video/3G1mp8SWwYg/v-deo.htmlsi=iwzOSc-rVoiAIp_W

    • @guenila
      @guenila 11 місяців тому +1

      ​@@FromNewToKnewThank you.

  • @Maw0
    @Maw0 3 роки тому

    This video is 5 years old, but it still helped me in my current Geometry class. Thank you!

  • @jj3011
    @jj3011 3 роки тому +1

    This fucking trigonometry was so complicated before...... thank Allen M. Modi

  • @thanward7291
    @thanward7291 5 місяців тому

    Thank you so much for making this video everything makes so much sense now.

    • @FromNewToKnew
      @FromNewToKnew 4 місяці тому

      You are most welcome. I appreciate your kind words. They encourage me to keep doing what I am doing.

  • @MaheshBaburajapalayam
    @MaheshBaburajapalayam 6 років тому +2

    Ya great . Now I understand stand which part adjacent and opposite. Our school and college teacher are memorizing only tech

    • @ColAllenMMorris
      @ColAllenMMorris 6 років тому

      Thank you for letting me know. Keep-a-Learning! and let me know how I can help you.

  • @kanty1
    @kanty1 3 роки тому +1

    Thank you so much for your effort🤍

    • @AllenMorrisColonel
      @AllenMorrisColonel  3 роки тому

      You are more than welcome. Thank you for letting me know that my efforts were helpful to you. Keep-a-Learning!

  • @devendersinghattri4654
    @devendersinghattri4654 5 років тому +1

    Sir, excellent! Wonderful explanation. Even at the age of 60 I am hopeful of becoming a mathematician!!!!!! What our teachers didn't tell us in college. you told me it now. Thank you very much, indeed. Kindly tell in next video how the values of each degree is calculated.

    • @AllenMorrisColonel
      @AllenMorrisColonel  5 років тому

      The value of each degree is just a ratio. For Tangent, it is just the rise over the run.

  • @bornkool
    @bornkool 2 роки тому

    Great system for learning when to apply SOHCAHTOAH
    Thank you for this useful and well presented Trigonometry Lesson. 👍

    • @FromNewToKnew
      @FromNewToKnew 2 роки тому

      You are most welcome. Thank you for your kind words. Keep-a-Learning!

  • @AllenMorrisColonel
    @AllenMorrisColonel  6 років тому +27

    Thank you!

    • @irfankhan-hd6it
      @irfankhan-hd6it 6 років тому +1

      Hey sir it is a good and helpful video but you said that hyp will be double to the opposite side but when you tried to find it out with sin theta it was just a little bit longer than that of opposite side so please tell me about it that is it only double for 30 degrees or what ...

    • @CasaErwin
      @CasaErwin 5 років тому +1

      @@irfankhan-hd6it Yes, only when the angle is 30 degrees.

  • @-BHAN
    @-BHAN 2 роки тому

    THANK YOU SO MUCH!!! I'M GLAD I FOUND SUCH A HELPFUL VIDEO! This is exactly what I was searching for😭✋

    • @FromNewToKnew
      @FromNewToKnew 2 роки тому

      Excellent. Thank you for letting me know. Keep-a-Learning.

  • @mohammadahmedragab837
    @mohammadahmedragab837 3 роки тому +1

    that is brilliant educational video, thank you so much from my heart

  • @morriswahba173
    @morriswahba173 4 роки тому

    I like your way clear easy simple that's the way should be good on you keep going give us lessons on algebra for beginners thank you

  • @sylviaczerniawski794
    @sylviaczerniawski794 7 років тому +13

    This really helped me out! Thanks so much :)

  • @nightshadespectre409
    @nightshadespectre409 5 років тому +6

    Thank you for this very easy to understand teaching on trigonometric functions. I find this quite interesting and fun to learn, and I’m only in 9th grade. lol

    • @AllenMorrisColonel
      @AllenMorrisColonel  5 років тому +1

      You are most welcome. Thank you for letting me know. Keep-a-Learning!

  • @oohmygod9521
    @oohmygod9521 2 роки тому

    suuuuper informative and easy to follow.

    • @FromNewToKnew
      @FromNewToKnew 2 роки тому

      Thank you for your kind words. Keep-a-Learning! You might be interested in my new UA-cam channel at ua-cam.com/users/fromnewtoknew

  • @MathsAlertDanger
    @MathsAlertDanger 2 роки тому +1

    I don't get it it's soo hard 😭

  • @InterestingTed
    @InterestingTed 6 років тому +4

    Thanks man! Trying to prepare for some survey work.

  • @jagritikumari6505
    @jagritikumari6505 6 років тому +1

    Thank you so much sir, thanking you from the depth of my heart

  • @anjalidhinglani6341
    @anjalidhinglani6341 4 роки тому +1

    the video is so long that anyone can sleep by just listening it

  • @IxIWHAKRIxI
    @IxIWHAKRIxI 5 років тому

    where did you get 1.3064 from? @13:53

    • @AllenMorrisColonel
      @AllenMorrisColonel  5 років тому

      It's algebra. 1.3064 was the unknown in the equation. I solved for x. If you need for me to explain more, let me know and I'll help you learn it. Thanks for asking. I'm here to help you.

  • @rahulmahato1057
    @rahulmahato1057 5 років тому +2

    Thanks

  • @4EntertainmentOnly
    @4EntertainmentOnly 10 місяців тому

    Thanks for clarifying what my professor couldn't

    • @FromNewToKnew
      @FromNewToKnew 10 місяців тому

      You are most welcome. Keep-a-Learning!

  • @canadianhaitian
    @canadianhaitian 7 років тому +5

    This is exactly what I was looking for!!!

    • @AllenMorrisColonel
      @AllenMorrisColonel  7 років тому

      canadianhaitian I'm glad that I could help. Thank you for letting me know.

    • @anjalidhinglani6341
      @anjalidhinglani6341 4 роки тому

      you were looking for anything that you got here

  • @clifflangevin2015
    @clifflangevin2015 6 років тому +1

    How did u get those cos #s @ 15:11?

    • @allenmorris9440
      @allenmorris9440 6 років тому

      That's a tangent function. I got that number from the Tangent chart. That number is also stored in most calculators too.

  • @harlessdon
    @harlessdon 6 років тому +4

    Well done, sir. thanks

  • @StewartCoad
    @StewartCoad 6 років тому +4

    Good teachers are a rare breed, you are a brilliant teacher, so you are one of the best of the best. Do you also teach calculus ?

    • @AllenMorrisColonel
      @AllenMorrisColonel  6 років тому +1

      Thank you for your kind words! No I'm not yet into making calculus videos. my focus is more on making things for elementary students now.

  • @Direwolf56
    @Direwolf56 7 років тому +1

    He has a very deadpan type of humor.

  • @joelrios2275
    @joelrios2275 5 років тому +10

    Who is here for finals😂?🙋🏽‍♂️

  • @LEC3RD
    @LEC3RD Рік тому

    This helped me how to do it but I still can't tell which one to do :c.

    • @FromNewToKnew
      @FromNewToKnew Рік тому

      Ask me a direct question. I'll try to answer it.

  • @sharathnarayanph
    @sharathnarayanph 3 роки тому

    Amazing video. Certainly learnt a lot. Thanks Allen!

  • @vishalmurmu3419
    @vishalmurmu3419 5 років тому +1

    Nicely explained sir..

  • @akashmech6537
    @akashmech6537 7 років тому +2

    Eureka, Superb Sir.

  • @MrAnperm
    @MrAnperm 6 років тому +3

    I couldn’t get answers because I can’t solve the problems. Knowing when to use sin, cos or tan I get; but not the algebraic part.

    • @AllenMorrisColonel
      @AllenMorrisColonel  6 років тому +1

      MrAnperm Okay. Ask me a specific and direct question.

    • @christallebristol7512
      @christallebristol7512 5 років тому

      @@AllenMorrisColonel So I have a few questions. You don't actually solve for Thetha - you just solve for the sine, cos, or the tan of it? Secondly you said in a 30,60,90 degree angle that the opposite side would be 1 or 2- being in 7th grade they taught me 3,4,5? I'm confused. Thirdly if there are different angle measures how exactly do you find the corresponding peg length? Is there a formula?

  • @louisbrentnell2551
    @louisbrentnell2551 3 роки тому

    Excellent teaching. Thank you.

  • @wanted1729
    @wanted1729 7 років тому +139

    soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa soh cah toa
    just wrote them a lot to remember
    thanks a lot
    one more excuse me
    soh cah toa
    goodbye

    • @hoyomcn8857
      @hoyomcn8857 5 років тому

      Kkkk good

    • @ZainabAli-er1ho
      @ZainabAli-er1ho 5 років тому

      Danmmmm u had time

    • @Veasnacheng1983
      @Veasnacheng1983 5 років тому

      soh cah toa

    • @JRR14_
      @JRR14_ 4 роки тому

      Soh can toa soh can toa soh can toa soh can toa soh can toa soh cah toa soh can toa soh cah toa soh cah toa soh cah toa soh cah toa

    • @rohangreen8890
      @rohangreen8890 4 роки тому

      Wrong. It;s sah coa toh

  • @silerkanoa
    @silerkanoa 7 років тому +1

    i know how to do these but I never know when to do these. Thanks!

    • @AllenMorrisColonel
      @AllenMorrisColonel  7 років тому

      I made a video that helps you learn just that.... Hold on, I will look for the link...

    • @AllenMorrisColonel
      @AllenMorrisColonel  7 років тому

      ua-cam.com/video/2CGEkAAnL-Q/v-deo.html

    • @silerkanoa
      @silerkanoa 7 років тому

      Actually, how do I know how to distinguish between SOHCAHTOA, Pythagoras, Sine rule, and Cosine rule? I know that sine and cosine are in non-right angle triangles only, but sometimes it seems like they could be used in right angle as well.

    • @AllenMorrisColonel
      @AllenMorrisColonel  7 років тому

      Hmmmm, I have not thought about what you are asking. I don't want to give a flippant answer and be wrong or confuse you more. I am traveling right now and I am not in a good position to make a video to answer your question. Can you ask me one direct question and I will try to answer it and then you can ask another?

    • @silerkanoa
      @silerkanoa 7 років тому

      Yeah sure. How can I distinguish whether a question requires me to use pythagoras theorem or Sin Cos Tan?

  • @joshuachang7026
    @joshuachang7026 7 років тому +4

    oml this video helped me get a 100 on my acell math finals. THANK YOU

  • @Lex-zo6bo
    @Lex-zo6bo 2 роки тому

    If only my teacher could get me to pay attention as well as a random yt video I found from a Google search

    • @FromNewToKnew
      @FromNewToKnew 2 роки тому

      You have proven that you know how to find information. Keep-a-going...

  • @D4ta1106
    @D4ta1106 3 роки тому +1

    This vid was amazing thank you

  • @CasaErwin
    @CasaErwin 5 років тому +1

    When is it beneficial to use the ratio Tan(theta) = sin(theta) / cos(theta) ?

    • @AllenMorrisColonel
      @AllenMorrisColonel  5 років тому +1

      When you have a right triangle and you only know two pieces of information but need to know additional information you can use the sine cosine and tangent functions to find the missing information. For example, if I know the length of the hypotenuse and I know the angle of one of the acute angles I can then know a whole bunch of other information about the triangle. I can calculate the lengths of the unknown sides. I can calculate the perimeter. I can calculate the area.

    • @CasaErwin
      @CasaErwin 5 років тому +1

      @@AllenMorrisColonel I understand that. Sin(theta)=O/H; Cos(theta)=A/H; Tan(theta)=O/A. But I can't figure out how the ratio Tan(theta)=Sin(theta)/Cos(theta) would be beneficial. The only thing I can think of is if your tables only have Cos and Sin and you need Tan, but that seems unlikely.

    • @AllenMorrisColonel
      @AllenMorrisColonel  5 років тому

      Okay... And everything that I have done with triangles it has not been useful for me. I suspect that is either important in higher level math or it's just one of those esoteric things that mathematicians like. I'm more of a practical guy...

  • @sheelaravi5227
    @sheelaravi5227 6 років тому +1

    Sir Ur explanation was too good also make explanation for similar traingles theorem

  • @derekmusicandgameplays8590
    @derekmusicandgameplays8590 4 роки тому +1

    Well it's very good explained thank u very much

  • @aaroldaaroldson708
    @aaroldaaroldson708 6 років тому +1

    how did you know that sin50 = 0.7660? I mean without having that table how can i count it?

    • @AllenMorrisColonel
      @AllenMorrisColonel  6 років тому

      Some calculators have the charts in them. Books also have the charts. The internet is also a good place, but you must have the chart.

    • @aaroldaaroldson708
      @aaroldaaroldson708 6 років тому

      @@AllenMorrisColonel Okay, but where did these numbers come from? Is there a way to calculate them "manually"?

    • @AllenMorrisColonel
      @AllenMorrisColonel  6 років тому

      @@aaroldaaroldson708 The number is just a ratio. It is a pure number. It is the length of one side divided by the length of a different side. For example, the sin of 30 degrees is exactly 0.5 because the length of the opposite side is 1/2 the length of the hypotenuse.

  • @mr.blackcat111
    @mr.blackcat111 3 роки тому

    learned more here than a whole semester of adv geo