Cosine Rule Finding a Side - VividMath.com

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How to find a missing length using the Cosine Rule (Law of Cosines).
"Trigonometry Cosine Rule" "Trig" "Maths" "Angle Geometry" "sin cos tan" "Cosine Rule Finding An Angle" "Cosine Rule Proof" "Trigonometry Cosine Rule" "How to use cosine rule" Cosine Law" "Trig" "Maths" "Angle Geometry" "How to" "sin cos tan" "Cosine Rule Finding An Angle" "Cosine Rule Proof" "Trigonometry Cosine Rule" "Trig" "Maths" "Angle Geometry" "sin cos tan" "Cosine Rule Finding An Angle" Cosine Law" "Cosine Rule Proof" "Trigonometry Cosine Rule" "Trig" "Maths" "Angle Geometry" "sin cos tan" Cosine Law""Cosine Rule Finding An Angle" "Cosine Rule Proof" "Trigonometry Cosine Rule" "Trig" "Maths" "Angle Geometry" "sin cos tan" Cosine Law""Cosine Rule Finding An Angle" "Cosine Rule Proof" "Trigonometry Cosine Rule" "Trig" "Maths" "Angle Geometry" "sin cos tan" "Cosine Rule Finding An Angle" "Cosine Rule Proof" Cosine Law"Cosine Law" "How to"
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5 окт 2024

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Комментарии : 113

@VividMath 12 лет назад

Many Thanks for your warm feedback!!!!!

@pavloverboy 4 года назад

If this guy can perfectly explain in 6 minutes what my teacher can barely explain in 75 minutes, then math teachers are doing it wrong.

@fredrickosakwe7074 2 года назад

True

@xaplz2382 2 года назад

exactly, this shit made no sense until i discovered this guy

@mustafarashad7353 9 лет назад

Thank you very much sir you are an awesome teacher. I hope you were my teacher; I would have gotten 100% in any quiz.

@sayedzamkan 6 лет назад

فعلا جميل

@mariamhaque3164 5 лет назад

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@TE-xo9bi 6 лет назад

This video is amazing, never been a maths person but this is some teaching I can respect, this is the only video on the subject that has substantially helped me, good onya!

@TheLKUZ 12 лет назад

I'm actually in love with Vividmaths! These video's are amazing! You've made everything so simple and easy! I was able to teach everyone in my class the way you've explained it and helped the majority of my class get A/A*'s in our mocks! Love and thanks Vividmaths fan :)

@danielrupprecht491 6 лет назад

more teachers like this are needed

@TheSraka22 11 лет назад

Your videos are the best tutorial material I have come across ever. When do you start your website? I can't wait. Your lessons are priceless.

@nadaabdalla7411 11 лет назад

this man is a super hero. I barely understood this from my tutor but he explains really well. I wonder how he knows all the answers without using a calculator!! Super smart, lol.

@Crazzy-5173 3 года назад

If you want you can plug into a calculator if it does bidmas Squareroot overall then (17*+20*)-(2(17)(20))cos(48)

@KHsora34 11 лет назад

great help! studying for physics exam and this was just fantastic!

@klargeworden 4 года назад

What an actual legend. I've never understood anything better :)

@boost.Threshold 4 года назад

Thank you sir, that really helped a lot 🔥

@armorvestrus4119 Год назад

Very well explained, but it did take a minute to catch on to all the parts.

@warraichabdullah611 7 лет назад

This guy is good

@ambrose5728 6 лет назад

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@mariamhaque3164 5 лет назад

Yes

@mariamhaque3164 5 лет назад

Yes yes

@mariamhaque3164 5 лет назад

You are what

@passaniabarnes1608 3 года назад

I followed along with this and I think u got it right

@passaniabarnes1608 3 года назад

* I got it right

@adamskead8859 5 лет назад

Thank you a lot for this, I'm gonna rub this in my teachers face and say I've done the impossible

@paulpayton6854 4 года назад

I love how this guy refuses to use the phrase "lower-case" but instead "little {insert letter here}"

@thabanimlalazi486 9 лет назад

This helped so much thanks !!!!

@vascobishop3359 Год назад

So good and clear. Many thanks

@ashi7910 6 лет назад

You're very helpful thank you so much

@jessicahaufiku3089 2 года назад

I just want to save the semester ☺️❤️.

@Pandorarl Год назад

I would still like a reason why the second part of the formula is as it is. My thought process is that since the first part is the pythagorean theorem of a right hand triangle then the second part must be the difference of the length if the right angle triangle would be less degrees. The cosine we can use to find the influence a vector on an angle has on another, but I'm still not sure about where exactly where the multiplication of the two other sides come in (2bc)

@ambrose5728 6 лет назад

I subbed you, you helped me out so much

@arianzidaneofficial Год назад

I paused it at the beginning, solved it and skipped to 6:03. Omg it's so satisfying to understand something

@brownie321 10 лет назад

Thanks Man This was really helpful :D

@lisapruijs5419 6 лет назад

Thank you! Very helpful

@TheBalrajBrar 9 лет назад

Thanks , its really helpful...

@lorrainechinyere Год назад

U explain perfectly was abt to give up on ds topic

@mightguy5548 Месяц назад

sir, are you alive? if so, I wanna thank you for helping my students as they're noobs and your explanation helped them alot. #ehub #amaderdarakichuhobena #spider_kuddus

@alphatricker3418 Месяц назад

Big Fan ❤ 👍👍👍 #spider_kuddus #amaderdarakichuhobena #ehub

@MahiMeherDin Месяц назад

Raid from spider kuddus #spider_kuddus 🛑🛑

@HammerHeadGaming-id1do Месяц назад

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@ponkytricker2825 Месяц назад

Can we collab ? #spider_kuddus ki jai ho ✊✊✊

@PONKYBHAI-z4n Месяц назад

We will break the algorithm #spider_kuddus

@finleyglass777 3 года назад

What a legend

@constant_asmr 3 года назад

This was very helpful, thanks☺

@abu_staif 3 года назад

Hi how is 2020?

@VividMath 3 года назад

Glad it was helpful!

@stevehope9143 8 лет назад

Great video!

@Jackil2307 4 месяца назад

Thank you very much sir . U really helped Alot

@stanpriceayers5344 6 лет назад

very helpful thank you

@_User__MiNa_Bruh Год назад

I was literally 5 years old when this video was released!!!!!!!

@sukhmeetlayal4361 8 лет назад

It was supposed to be 435

@MATTHEWGUMBEZE 8 лет назад

THANK YOU

@Risulfur 6 лет назад

Why 15.3 and not 15? In the beggining of the problem there were given 3 different numbers and all of them had only 2 significant numbers (20, 17, 48)

@Pandorarl Год назад

Because this is a maths problem so we assume presicion. Where as if it was a physics question you would absolutely be right

@greatdane1948 7 лет назад

Thanks!

@brian8529 4 года назад

Your way better that my Asian tutor and she is asian

@stephanieupright2324 23 часа назад

Can we get practice questions?

@gideonmendem Год назад

thanks sir

@MasonMichaluk 3 года назад

Thank you so much,

@annesneha8583 6 лет назад

Thanks a lot ❤️

@javonramjohn8747 10 месяцев назад

All i can say is thank you

@Cameron-tl2ty 6 лет назад

appreciated

@dustysane1591 9 месяцев назад

thankyou sir ...😘

@colethamansueti-qd6wc Год назад

Is it must to be given the value of b and c and the angle

@invokergaming4991 Год назад

i think its gonna be -435 instead of -455

@PristineReviews 11 месяцев назад

same whats going on here

@PristineReviews 11 месяцев назад

so incase you were still looking for the solution, its that our calculators were set to RADIAN mode. just have to change it to DEGREE mode

@CalviNsiku 7 месяцев назад

Why didn't he the cos48 🙄🙄

@phrincebernardino7060 6 лет назад

Thank you 👌 -2018

@theophonchana5025 3 года назад

cos (48°)

@jackdaw9418 7 лет назад

No it came out as 15.3 for me

@funitoo 7 лет назад

I watch like 20 videos by now and spend a couple of hours googling and still NOBODY has said what "cos" is. Is it something that everyone just know and I have a genetic mutation which misses it out from my brain?

@camilaschica6650 7 лет назад

Cos means Cosine :)

@Paul-ob2hy 7 лет назад

Tad Ka cos means cosine, think of this as a scientific ratio you apply to numbers of degrees.

@Risulfur 6 лет назад

Cos alpha = Xalpha, look up trigonometry

@mariamhaque3164 5 лет назад

Who are you and why you like?

@khalisafauzi8303 3 года назад

thanks thats help meee

@VividMath 3 года назад

Glad to know

@leenaminnawahda281 Год назад

much love

@Jason-wy7wx 7 лет назад

680 x 48 is not 455 please someone help me he said "680xcos48" help i have spent 1 hour just rewatching his videos to see if he tells us something

@african_samural.official 6 лет назад

cos is a button on your scientific calculator to work out the that style of triangle

@shaniyasims1626 6 лет назад

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@Conquerorbrown 6 лет назад

focus on the procedure and use your calculator to do the rest. make sure your calculator is programmed to degrees and not radians. He may have rounded off the value.

@mariamhaque3164 5 лет назад

Hello I like mathematics

@mariamhaque3164 5 лет назад

I also like this