Intro to Trigonometric Functions (1 of 2: Angles of any magnitude)

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Eddie Woo

6 жыл бұрын

More resources available at www.misterwootube.com

Пікірлер: 79

@luoana7574 4 жыл бұрын

I wish you were my teacher. Lessons would be very entertaining

@Smirkley_face 3 жыл бұрын

ikr

@thaison.t 4 жыл бұрын

"it's easier to draw a big circle than a small circle" Kid : *dots paper*

@coderanger7708 2 жыл бұрын

Dot isn't technically a circle.

@thaison.t 2 жыл бұрын

@@coderanger7708 .

@coderanger7708 2 жыл бұрын

@@thaison.t A circle has to have a radius in general. And we assume a circle with radius to draw a general circle. When you just put a dot it doesn't have any radius, but it can be referred as a point circle. The thing is, apoint circle is a very special case of a circle whose radius is zero, so you can't draw a point circle for general cases. Also, Eddie woo's point still stands as a your point circle doesn't have a radius, you can't compare it's size with anything, like imagine comparing something with nothing. But still if you say 0 is comparable, then the context is important here. Eddie said that bigger circle is easier to draw than smaller circles in the context that he should draw by hand. If you just put a point, it might look like a circle but when you zoom it in enough you'll see irregularities in your ink used.

@animationspace8550 2 жыл бұрын

@@coderanger7708 This also confirms that you can not physically draw a dot and that any "dot" you draw is a circle with a radius, and so the argument stands

@rajasaurus3229 Жыл бұрын

@@coderanger7708 Utilise a microscope 🔬

@veks374 6 жыл бұрын

Even though I already studied the basics of Trigonometric functions not even a month ago, it'll definitely come in handy at some point. I love watching your lessons because of the way you present and teach them. It just makes me want to learn even more and more. Good job Sir! Your work is much appreciated!

@mogoleserogole6903 5 жыл бұрын

Mr Woo, your enthusiasm for mathematics is absolutely contagious! I can never thank you enough for your very engaging and easy to follow presentations. I'd definitely recommend your material to any maths student or enthusiast sir, you're absolutely brilliant! Greetings from South Africa.

@hienle1153 5 жыл бұрын

I feel the same way

@fitzwilliamlokiec4672 Жыл бұрын

You could never ever understand how helpful you are. You are literally saving my whole life. You are the goat!!!

@mhyr 3 жыл бұрын

sir, you did something that my teacher couldn't do in 90 minutes in 9 minutes..thank you soooo much!!!

@youcanteachthem 3 жыл бұрын

Hello Mr. Eddie You have reached many parts of the world with your videos and have helped so many people. Thank you would obviously be a little understatement :) It really brings tears of joy to my eyes to see how a person can touch upon many lives when I go through some of the comments underneath each of your videos. I may be older but I do look up to you when it comes to teaching mathematics. I teach lower grades, but I love maths and I watch your videos to further my knowledge and skills. Though, I may not have a hundredth of your teaching and maths knowledge, I do share one thing, for sure, with you, which is the positive energy and the passion for what you do. Love and respect from Egypt :) I still have a question that I would like to ask, though :) My question would be: Sine of any angle that is a multiple of 45 degrees would always assume 1/sqrt2. However, not all the y-coordinates of those angles will assume a positive value. My brain finds it hard to connect the idea of finding the y-coordinates using the sine function. Any help would be much appreciated (anyone!) :)

@westleyvandenwalt9453 6 жыл бұрын

thank you Mr Eddie Woo Hi from South Africa!

@kiwifruitwonders1209 3 жыл бұрын

Lol can imagine someones come back being, "Yeah but does your teacher have a million subs?'

@preparationwithkeshav1369 5 жыл бұрын

you are a great teacher! you make everything so simple to learn, thank u sir

@zummyizhere 3 жыл бұрын

I finally get it now, thank you so much you're such an amazing teacher!

@Louis-ir5sy 4 жыл бұрын

My teacher taught us this but I wasn't really paying attention so thanks boss

@nature_through_my_lens 6 ай бұрын

If I had a teacher like you in my school days, I would have been in NASA right now.

@yoavshati 6 жыл бұрын

I love the way you're explaining these things I already know a big part of what you're teaching, and even a bigger part of Israel's lazy curriculum (no induction proof and oblique asymptotes, and probably some other stuff in calculus), but your videos are too interesting not to watch My favorite videos of yours are about e^i(pi)-1=0. I watched so many videos on it without understanding it fully, and you just explained the whole thing in about a hour (maybe), while also explaining imaginary numbers and Taylor series from zero You're awesome

@uwu_6728 3 жыл бұрын

I'm seeing videos of my teacher's favorite teacher.

@mathsforcompetitiveandscho3189 Жыл бұрын

Happy Teacher's Day from India..

@anirg8895 3 жыл бұрын

Great! It was nice one.. I could not imagine trigonometry as the sense which you told.. Really Mathematics is the sense we never knew we had!👏

@dotCoockie 6 жыл бұрын

Best teacher

@lenalip815 2 жыл бұрын

mr eddie youre truly the best !!!!

@darshanvenkataramanan1785 4 жыл бұрын

Sir....I love ur teaching sir....we need u to take more concepts of maths and physics too please sir ....pls

@bodh_f3222 3 жыл бұрын

You are the best teacher in the world

@albertinocappuccino1141 2 жыл бұрын

this man is a legend

@Aristothink 9 ай бұрын

great video as always.

@rend8012 Жыл бұрын

Mans goated.

@dragonflyfansassociation9431 3 жыл бұрын

Great class

@arion_g129 3 жыл бұрын

I wish I had this teacher

@saltNpepper952 Жыл бұрын

oh how i wish my professor taught like this. i learn more from this dude than attending classes :'>

@johnryder1713 4 жыл бұрын

All the most important things in one short video, where would you get it?

@kaustavpal5510 6 жыл бұрын

😮 sin is y and cos is x.

@cilgincondudrenfanpage2.086 3 жыл бұрын

Love you ❣️ sir from India student by Ankit Kumar Sahu

@jxnnsbz3295 6 жыл бұрын

👌🏻

@johnfrog9210 4 жыл бұрын

Thankyou

@Jacob-hv6rn 5 жыл бұрын

I just had an lightbulb moment. 😭 why can't you be my maths teacher

@jub8891 4 жыл бұрын

get with the programme, its because maths is racist!

@triplespace6 4 жыл бұрын

blocked nose but good help lol

@akogarestudying1143 4 жыл бұрын

i don't understand why 180°-45° , isn't it 180°+45° ??

@matthew6443 3 жыл бұрын

It is 180 minus 45 because from the starting point you go anti clockwise almost 180 degrees, but just short of it, short by 45 degrees

@akogarestudying1143 3 жыл бұрын

@@matthew6443 thank you

@narmadraval25 6 жыл бұрын

Sir is there any particular reason that why we say one circle is 360 degrees? Why not any other way we divided?

@erikpoephoofd 6 жыл бұрын

It might have something to do with it being close to the number of days in a year. The earth roughly moves 1 degree every day. That's just a guess though.

@dvashunz7880 6 жыл бұрын

It's a good guess though. It was what they were aiming for. The "official" reason for the extra 5 or so days was that they were "Holy days" to be considered as existing outside of time. Interestingly the whole system was set up to harmonize with the human heart beat. The heart beat was the basis for the second, and numbers like 12, 60 and 360 were prolific in factors, which makes them convenient to work with at a practical level, and for the mystically inclined symbolized fecundity. The seven days of the week is based on the observation that six equally sized circles will surround perfectly a seventh circle of the same size. Thus the central circle was the day of rest, around which the six others would revolve, symbolizing the six work days and the so called Sabbath day of rest. Creative bunch us humans...

@BradNakken 6 жыл бұрын

Eddie himself has a video on this topic! kzfaq.info/get/bejne/g52iortl0bTLg6s.html

@samk6042 5 жыл бұрын

Naman Jaman watch his radians video

@watermelonmanied 6 ай бұрын

Why, when I put sin45 into my calculator do I get 0.8509...? I'm lost from the get-go

@cburakyilmaz4383 2 жыл бұрын

Böyle iyi anlatan bir matematik hocam olsaydı hukuk seçmezdim.

@devikas.9088 3 жыл бұрын

What grade does he teach?

@FortniteGoldScar 2 жыл бұрын

pop smoke really came back from thedead too teach math #longlivewoo

@user-rb6is4xc5t Жыл бұрын

why is sine 0 the y coordinate?

@Triple-A6 2 жыл бұрын

what is the name of the school u are in

@victoriastuart-lee8355 4 жыл бұрын

Those pretty mandalas tho

@supreet74 3 жыл бұрын

I was in class 9th(14yr) when I was taught this in India...

@namraaah271 2 жыл бұрын

who cares..............plus u are a liar because no syllabus in India teaches this in 9th and i know this cox i am from India too

@user1ejej 2 жыл бұрын

uhmm but trigonometry is introduced in 10th and not in 9th

@bronwyngreen119 2 жыл бұрын

I found this a bit too challenging. What video can I watch before this one?

@LuckyLuca2 4 жыл бұрын

1:58 f

@Praneel 3 жыл бұрын

@Zmathsprospect_27 Жыл бұрын

6:07

@thedriver.michael.3975 2 жыл бұрын

You helps me children alot but I can hear clearly not seeing what you write pls increase light

@Hatim029 Жыл бұрын

Q.Who is watching this video in 2022 ? Ans- I am 🤣 But it is use full for me 👍

@troylow6229 5 жыл бұрын

i dont get why sin 135 is the same as sin 45? someone pls help!

@akaBaye 5 жыл бұрын

complementary angles, since sin is in the second quadrant, it is positive. sin 135 is also equal to sin 180-135 which is sin45.

@carultch Жыл бұрын

@@akaBaye *supplementary* angles.

@AsicksFox Ай бұрын

It's blurry

@Bernie22649 3 жыл бұрын

Australian accent? Sounds like chan from skz

@albedokreideprinz4020 3 жыл бұрын

omg why did i read this now i cant concentrate xD all i can here is chan

@ii_ynwa2357 2 жыл бұрын

His accent is attractive lol

@birgezenbirdeokuyanbilir9419 3 жыл бұрын

anlamaya çalışıyorum... 😅

@mervebilgin6615 3 жыл бұрын

ı just watched this for fun. ı dont even know myself anymore. Who am ı?

@pranav3041 3 жыл бұрын

do you have a cold your voice sounds like your nose is blocked, sir

@heyyitsesr 2 жыл бұрын

birazda inglizce dinliyim dedim yok olmuyor dgfhdfghdsfhs