Law of Sines and Law of Cosines (4 Examples) 

Mr Mario. as a dad who forgot all his math I have to thank you for putting this together. It makes helping my kids a breeze. Thank you.

Sir, you are great teacher Because unlike any youtube tutorial videos your voice is loud and clear, your examples are brilliant and The best of all it's completely free... Thank you so much Sir You were such a big help for me

This man needs a cookie for saving us all from online learning

This video is a life saver. I want to say you taught this in a much easier to understand way than my teacher did in a week. Granted, I didn't pay much attention on Sines, but I did with Cosines, and I now have a clear understanding of both. My teacher never mentioned anything about Cosines being used on SSS and SAS triangles. You have a really good way of teaching this stuff. Good job!

My guy this was perfect timing I just learned this today. THANK YOU SO MUCH

Mario's explanations and examples are amazing. He makes learning the material so many times easier, and the fact that he's doing this for free and out of the good of his heart is amazingly gracious. He's the math teacher we all wanted, but didn't deserve. Someone give him a cinnabon

Super helpful! Needed an extra bit of review and this was perfect!

It was this easy!? Wow thank you so much, you thought me what 3years of private high school couldn't! Thank. You sosososo much

This video is the only thing I actually learned during online school lollll

I really frustrated with this due to taking it online, but this video has helped me understand it more thank you.

Dude this helped so much I was gone the day we learned this and had no clue what was going on but after this video I’m feeling great about these problems now. Thank you so much!!!

yo just helped me past my test you are a living legend

Getting some last minute studying in before my final! Thank you 🙏🏼

My s.y just ended but i have a lot of activities i missed and this helps me a lot thank u and the fact that the video is short but understandable really thank u

Wow. This makes so much more sense now

Very helpful! thank you mario

My teacher made it so much long then it should have been for the equations thank you I hope I do well on my test!

You have a great way of explaining things so that they make sense, giving the reason behind why things are being done and providing ways to memorize things in an effective way. Thank you for this gift.

Ack! Thank you so much for this! I was totally confused on this until I saw your video! Thank you so much!

Well I've got the equivalent of a leaving cert or a GCSE exam coming up to finish high school and I'm glad I found your videos!

Thank u bro!! I watched a lotta Brazilians teachers but I can't learned it very well, u helped so much!!

Great summary! Thanks for the comprehensive approach. I'll be posting this video as a reference for my students.

This dude taught me more in 9 mins then my teacher did in 2 weeks

You sir have earned another subscriber! Gotta be one of the best explanations ive ever heard! Thank you!

Thank you so much sir , helped me a lot . Hearty thank you from an Indian .

You couldn't have posted this video at a better time. You da man

I never understand my algebra and geometry teacher, and Mr. Mario, you always have the 10 minute videos that explain clearly what she tried to teach me in 2 hours. 😁

Thanks now I’m ready for this exam

Thank u so much, i always learn better in ur videos and the equations and style is similar or identical on whats taught on my class.

Learned this 3 years ago, forgot it, need it for SAT, now i know it. Thanks so much.

Great video, helped a lot in collage cause I had forgotten about most of this stuff from highschool

MARIO THANK YOU SO MUCH YOU JUST SAVED ME

Thank you so much, you make MATH challenges understandable and it may not be easy but we can learn from you.

Thank you so much this is easy to understand!

Thank u sir khan academy is stressing me out and this helped a lott

Thanks man, great teaching. Helped me out a ton

This was extremely simple and helpful, thank you so much!!

dude you’re fking awesome my geometry teacher is awful and doesn’t teach anything but with you i’m CHILLING. god bless bro

Long time viewer. Great instructive videos. Thank you.

Thank you so much! Tbh, I understand this a lot more than studying in my class

Thank you so so much with this video! It really helped since my geometry teacher doesn't teach us!!

After serving 9 years in the Navy and trying to go back to school, your video's have been amazing, thank you and I hope you are doing well.

this video literally saved my life tysm

love this guy. Hope you are doing well.

hey what if you’re given a triangle without labeling sides ABC respectively and there’s a missing angle at the top?

thank you so much you helped me and my grade:)

Awalys impressive and understandable teaching... keep it up sir

I’m in a college trig class online over the summer. Lemme tell u. This video helps me understand. I need someone to explain it to me.

Fantastic 🙏 truly appreciate very much 🙏🙏🙏 awesome teaching skill 😇👍 thank you sir !

Thank you!

Thank you Mario, goat teacher

anyone else's teacher not teaching them and giving them these videos instead? rip

Thank you soo much 😭😭 I hope your pillow is always cold have a good night 🤩🤩

I like how he simplifies things.

bro is a prodigy at teaching math fr

Hi! at 8:28 shouldnt it be +198 to cancel -198? why is it also negative?

Ur Brian is so bright under the light

save me so much trouble i LOVE you

Thanks sir, it was very helpfull

thank you sir! 🙌🏼❤️

you made me pass my test by .82% thankyou so much :D

Will you explain ? (e^ix)= cos x +i sin x With examples

Great 👍 sir.

You saveing me from the final exam

thank you you helped A LOT!!! may god reward you

Thank you sir

Thank u so much for explaining this,but when it's comes at the end of (Bcos)I still don't understand how did you get the 225=121×81-198cosB

An 18m cable is connected to the top of a 14m radio mast and fastened to the ground at an angle theta to the horizontal. 1. Draw a diagram to illustrate the problem? 2. Calculate the theta in degrees correct to 2 decimal places? Post your ASAP??

Thank you johnny sin teacher

thanks

I hope I can get a few things from this video

good shit mario

Hey just a little thing but maybe show us what your calculators says zoom into the calculator or show the camera it so we can see the weapons you push

in 5 minutes you explained what it took my teacher like 7 weeks to even do half

For the first question what do I type in the calculator?

W teacher!

How did you get the the 96 in 8:45 ??? Can you pls explain sir

2:02 why did u multiply by 6, is there any other way to solve without multiplying by 6?

Can you explain how you got 6.7 in the first cosine law example

How do we plug in the cosine ratio into the calculator because I keep getting larger numbers instead of 6.7 6:37

At 2:36 he says that the angle is 53.6 but when I put it into the calculator I got 53.61 so wouldn’t it be 53.6? I’m so confused 😢

I just need help with the calculator how did u get .805 I couldn’t get it

Yeah I have a quiz on this tomorrow but I can't get the calculations to work out. I put the law of cosine problem into my calculator and I get a totally different number than what you got

Wait how did you multiply by inverse of cosine with no degree measure

bro saved my ass, thank you.

what iff theres no degrees or number inside the triangle

help how do I get the inverse cosine on the calculator? TT

God bless

3:53

Yo bro I approve Strucid

Still dumb cause i still dont know how to solve for the last side on the first example😂

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