Law of Cosines, Finding Angles & Sides, SSS & SAS Triangles - Trigonometry

This trigonometry video tutorial provides a basic introduction into the law of cosines. It explains how to use the law of cosines formula for finding angles and for finding the value of missing sides. It explains how to solve the sss triangle and the sas triangle using the law of cosines first and then finishing up the problem using the law of sines formula. This trig video contains plenty of examples and practice problems.
Solving Trig Equations - Finding All Solutions:
• Solving Trigonometric ...
Solving Trig Equations With Multiple Angles:
• How To Solve Trigonome...
Solving Trig Equations With Double Angles:
• Solving Trigonometric ...
Law of Sines:
• Law of Sines - Basic I...
More Examples - Law of Sines:
• Law of Sines, Basic In...
Area of an Oblique Triangle:
• Area of an Oblique Tri...
______________________________
The Height of a Triangle - Heron's Formula:
• How To Calculate The H...
Polar Coordinates:
• Polar Coordinates Basi...
Polar Equations to Rectangular Equations:
• Polar Equations to Rec...
Rectangular Equations to Polar Equations:
• Rectangular Equation t...
How To Graph Polar Equations:
• How To Graph Polar Equ...
_________________________________
Complex Numbers - De Moivre's Theorem:
• Complex Numbers In Pol...
Dot Product of Two Vectors:
• Dot Product of Two Vec...
Trigonometry Final Exam Review:
• Trigonometry Final Exa...
Final Exams and Video Playlists:
www.video-tuto...
Full-Length Videos and Worksheets:
/ collections
Trigonometry Formula Sheet:
bit.ly/47diggI

[@TheOrganicChemistryTutor]

Trigonometry Formula Sheet: bit.ly/47diggI
Final Exams and Video Playlists: www.video-tutor.net/
Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections
Next Video: ruclips.net/video/aSdaT62ndYE/видео.html

[@robsonrobinzo-ow7em]

when I see organic I don't hesitate to click then everything goes as expected always

[@502Bentley]

With classes now online, you are basically my teacher now..

[@yasshi4796]

Same

[@riseruchan3616]

Relatable, our prof doesn't teach us a thing. Smh.

[@blackholedividedbyzero]

His everybody's teacher

[@jhfdoggy8788]

I find it so extremely Erie that this comment now says 1 year ago.

[@mq-r3apz291]

how did he convert to degrees? I know how to convert with pi/180 to radians but got something different. At what part did he convert?

[@Yellowbrick559]

There are a ton of math tutorial videos on RUclips, but there is something about the way you explain things and the calming presence of your voice that makes it so much easier to understand. I always watch multiple videos on the same subject only to find yours and things finally click. Thanks so much for what you do!

[@Nadia-hj6tc]

the only youtube channel that actually helps me with math. bless u sir

[@Dailydoseofstupitity2]

potato salad

[@GhostTheCreator]

potato salad

[@ralphcesaryabut6668]

Not all heroes wear capes. I owe you my entire semester.

[@zah1377]

You is a gift from God, You are a blessing,, and I want to say Thank you very much. You make everything that seemed hard at first easy. Thank you and God bless you.

[@TheOrganicChemistryTutor]

You're welcome

[@focusonme7616]

​​@@TheOrganicChemistryTutorCan you be my husband sir

[@lord-draco]

Seriously nhgal ​@@focusonme7616

[@Troll_Editz69420]

💀💀💀

[@GP-ed2ch]

idk why you teach me more than a 90 minute lecture man. Thank you so much

[@MrSiya-k6c]

You know ,i listened to my teachers for many years to understand those methods You did better in 10mins
You're the 21s legend brother

[@Xfilesfreak66]

Thank you for keeping things short and to the point. My professor was all over the place when teaching this and skipped around making it really difficult to follow. Now it makes perfect sense to me and you're a life saver!

[@sigrid.5994]

Just got a 94 in my Trigonometry class because of you ❤

[@DEWHighlights]

Bruh I still got a D+ on my quiz. Man, math isn’t for me😢

[@awarnick84]

Thank you for doing these. Your explanations are SO clear and concise.

[@lincolnscott1877]

Thank you so much, Organic Chemistry Tutor! You're so helpful to many and many of us wouldn't understand these lessons without you

[@akari2178]

I take my GED this year, your videos are really helping me out! Thank you so so much! Your explinations are so clear and really helpful! God bless you sir :)

[@Ka1sserrr]

Without you I wouldn’t be able to maintain an A in my class I am eternally grateful

[@Fawaffles]

The way his teaching and his calm voice make me never stress when studying while watching this dude

[@Misty-nd8xm]

I agree my guy :)

[@bellelirazan5970]

Thank you so much for this, I was very confused when this was first discussed to us, now I fully understand the lesson. Please continue to upload more videos, you saved us all - an online class student

[@romantitus3341]

As usual, I learn more about law of cosines in this video then a teacher that taught this for 2 weeks and I had no idea until I saw this.

[@jananiu6430]

my ninth grade ass skipped classes so i really needed this lmao

[@benben-ro1cr]

where are you from lol?

[@lilyscott9902]

Jana Niu feel this

[@d0d0birdiexd78]

Jesus 9th grade? Im doing this in 11th grade!

[@jananiu6430]

@@benben-ro1cr Philippines

[@jananiu6430]

@@d0d0birdiexd78 Damn really? learned this in grade 9 and 10

[@phyllismurphy6540]

He is the best. I always go to him first. So patient and kind. I sure would like to see his face.

[@pear2369]

When your math teacher uses the easiest problems for examples, you don’t learn much..

[@planecrazy3808]

Boi I dont know how I am learning more here than in class.

[@jashin888]

This is literally my teacher and I wanna smack the shit outta her

[@Nsut_Aim]

It's just illustration
To show how the formula or general result works
The part of problem solving is upon you

[@krattgirl124samarama4]

I have my ACT coming up in a few days so this video really helped me with things I forgot

[@Gabs_Mex]

3 years later, helping me pass my demonstration of learning 🙏🏼🙏🏼🙇🏼‍♀️

[@georgesadler7830]

MR. Organic Chemistry Tutor, thank you for another awesome video on The Law of Cosines. This is the backbone of Trigonometry.

[@AbdouKarimJarra-t6q]

I swear to god you’re the best mathematician I’ve been watching your videos since and I can now boldly say that I’m not afraid to solve maths questions because your explanations is top notch ❤

[@bernstein9476]

Yo bro ts came out 6 years ago and im still using ts I love u sm thank you

[@BasmaHadil-ww2ru]

What sm mean?

[@oyingiwahouse_of_majestic254]

Wow you solve questions so easy, I rent to understand perfectly when even I watch your videos.

[@agnieszkaelainegarcia2580]

thank you so much, you help so many students

[@gibsontamu-s7k]

bro your videos are the best, you helped me in so many of my exams. please don't stop uploading.

[@billcipher5508]

THANK YOU!! Very clear, and a relaxing voice!! I used this for one of my math problems because I didn’t understand how to use the formula at all!! Turns out, I didn’t need to do that problem but now I know how to use the formula and I have a test in two days so 🤷‍♀ sweet ig lol

[@espinarusseljohnc.8022]

You've helped me a lot I passed my subject in calculus1 coz of you thank you!

[@radenfearless]

This is simply a brilliant help in systematic preparation🤗

[@JanePlayz]

I literally have 1 night to cram this and you're saving me

[@shawnlytle266]

Thank you for this video. Very helpful because I had to miss a class this week and this easily summed up the information that I had missed.

[@michaelnwoye2103]

You are a nice tutor
Your videos have helped me alot even when I’m preparing for exams
You take your time to go into details and your explanations makes me understand what i want to know
Thank you so much

[@PureLuck21]

first ever video on youtube that actually helps

[@shinshin744]

as a struggling grade 8, this helped me alot since i couldnt even answer any of the math questions when its trigonometry class since i was always absent on mondays thank you so much

[@AbdouKarimJarra-t6q]

Your videos helped me a lot and I’ve shared your channel to my friends too so that they can benefit from your videos

[@focusonme7616]

You're the reason why I was able to pass my 3 major during my first sem,Thank you!!!!!!!!!!!!!!!

[@BasmaHadil-ww2ru]

What's sem mean?

[@BasmaHadil-ww2ru]

What's sem mean?

[@sabrinaviloria2027]

My math teacher hasn’t taught us anything the whole quarantine, you just saved me sir thank you:)

[@Visichy]

I've got a math test tomorrow and you just helped me understand all of this so much better than my teacher thank you

[@christophernguyen8083]

Thank you for this I'm sure I know how to do this, but it's been a while since I've done math. I am currently in engineering by the way.

[@psychopathic3082]

This vid has clear objective and has more detail and easy to follow up with his every equation than my online classes! Online class are boring! Wasting our 10 mins for one example and this vid is only few minutes LOL 😂

[@nikolai4380]

there is a better formula for SSS, like cos C= a2+b2-c2 /2 x a x b, cosA= b2+c2-a2 / 2 x a x b, cosB= a2+c2-b2 / 2 x a x c

[@andrewmorrissy3122]

Organic chemistry tutor clutching again for my statics exam bless up ❤️

[@steveturner1680]

Do you use your computer mouse to write? Thank you so much! Our teacher is moving to Maine so it looks like we really need u :/

[@nanafisiiahi]

Thanks for helping me pass Geometry! Real one fr‼️

[@iane.2155]

Good luck for my exam tommorow. Thanks OrgChemTeach!

[@YourOwnAdventure]

I'm not sure if you do it on purpose, but I enjoy it when you call incorrect laws, angles, etc. to keep us sharp!

[@jada9360]

The best thing is that you slove some example sums. That really helps

[@elliottmaccrone328]

this man is a godsent

[@AhmadMaher-u6k]

I hate math

[@amiralihamidian6762]

Ur not alone

[@ondniwa]

i used to be, you won’t be hating it as much after you learn more of it

[@AbdulrahmanAyman-og7tf]

I’m the opposite of you

[@user-ir4wn6qs5t]

@@AbdulrahmanAyman-og7tfi disliked your comment

[@Findgod222]

Who doesn’t. I have to relearn all this sht for my final. This sucks ass. I hope I don’t have to do math ever again after I graduate.

[@vascobishop3359]

Perfect explanation.

[@didacemugemana7095]

thank u for everything these videos improve our understanding may GOD bless u

[@ronnahzulu4506]

God bless you ❤️❤️😩 I never knew trig can be this easy ❤️❤️❤️

[@free_Sdot]

Better than my math teacher

[@just.a.browser]

YAAAGGHHH!! I have been studying and rn i think i have some idea on this topic. i will cm bk and report if i learnt anything from this video!! edit: at first i thought there was a problem but watching ur video, i was able to find a mistake in my workings. Thanks!

[@FUNXP12]

Thank you very much

[@heyman6087]

You help me so much in the times I need it

[@dragonninja9908]

Thx bro, rlly saving me from catastrophic failure rn

[@froppy9086]

u saved my final test thank you ;-;

[@izyansyed2817]

4:04 angle c is 60 not 30
btw This really helped me for my test tomorrow

[@SarrouTube]

Excellent !!!!

[@tigershark2772]

yes, the videos from 2006 are really helping cause as far as I know, math hasn't really changed and im still passing.

[@crichellerevilla7552]

Thank you for saving my struggles😊😊☺️

[@kina2574]

You're a life saver

[@H.Maria007]

you are a genius

[@uglynaija]

Gotta geometry test today this funna be a breeze🙅‍♀️

[@Gavenchyy]

Rewind i got a precalc test tmr 😩

[@Allen-zq4lp]

This is trigonometry btw.

[@uglynaija]

Allen Rodriguez yeah Ik at my school this a priority standard

[@abigailrichard5629]

@@Allen-zq4lp trig is covered in geometry, i'm pretty sure they knew that

[@juanitabalanza2297]

Lol

[@nadeenhameed5808]

I’m a little confused because teacher gave me the formula cos

[@chair4710]

Thank you papa

[@orangejuice8339]

9:05
Isn’t angel A= 180- angel C - angel B which is equal to 180- 73.4 -48.2= 58.4 ?
Also thank you for your lessons they’re really helpful.

[@lonely-duck]

you are a grade savior

[@CakepopSims]

where did that -1 come from and how did you get 73 degrees for the angle

[@lexxxus.crxwnzlexxxus.crxw5990]

It’s the inverse that you type in the calc to find the degrees

[@nizavillanueva6285]

It is so great !! Best explained

[@jhynx2081]

I PASSED!!! THANK YOU SO MUCH I OWE YOU A LOT

[@conk1]

W

[@HalaZaki-l5k]

Thanks for explaining nicely.would you please explain bearing

[@jakeghaust5550]

Thanks for the help it’s easy now

[@YT_Kirishima]

Thank you so much bro

[@matto2971]

Good explanation. Thank you.

[@avaSdivya]

You are the best!

[@rebecca_ngn]

Thank you!!

[@nyamejonathan1228]

Nice lessons bro...

[@liamhoward2208]

7:48 it’s the law of sines not the law of cosines

[@AubreyLJohnson]

Not really a big deal :/

[@ケン-k9j]

At least he taught us. I have a test tomorrow

[@evloghmenosxxx4035]

Thanks , some better than my maths teacher

[@nielsdaemen]

7:48 **Law of sine's!*

[@Thuwiba.]

Thank you so much 💖

[@alejandragalindo7890]

Better that my teacher

[@landslordmukhabela6122]

Thank you sir.

[@emlee6788]

thank you thank you thank you!

[@lancejaredcayabyab2719]

thank you, sir! as much as i love learning math, i kinda hate this topic. i always find math amazing when you get to do ways to shortcut things, but this topic needs long solutions. wish me luck :))

[@halfagony-halfhope]

You're exactly like me, I love finding my own way out of problems if I can find one xD

[@8latt]

Thank you

[@fredhedengren161]

really well done....thks.

[@maanned.4900]

Thank you so muchhhhhh!!!! ❤️❤️❤️

[@BellaRamirez-di9ug]

Bless you and your big brain

[@kaylinburchette575]

Thank you sooooo much!

[@bhoot._.56]

bro taught me more maths than my actual maths teacher

[@nicogarcia7451]

Dude thank you so much.

[@jeryarand5243]

Thank you!

[@MunisaGaibnazarova]

thank you

[@ethanli2549]

thank you so much man

[@Macho_Paarthurnax]

thanks man