Law of Sines and Law of Cosines (4 Examples)
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- čas přidán 5. 08. 2024
- Learn how to work with the law of sines and the law of cosines in this video math tutorial by Mario's Math Tutoring. We discuss when to use the law of sines and law of cosines as well as going through 4 unique examples. We discuss how to solve for the missing side or missing angle in a triangle.
Related Videos to Help You Succeed:
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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.
Awesome! Thanks for letting me know! Glad my videos can help your family out!
This man needs a cookie for saving us all from online learning
You guys still have online school, I have been in full time since September
Or sum shampoo
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
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
This video is the only thing I actually learned during online school lollll
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!
Glad it helped!
My guy this was perfect timing I just learned this today. THANK YOU SO MUCH
You’re welcome! I’m glad this video arrived at the right time for you!
Let me guess,11th grade?
Nah 8th grade
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Super helpful! Needed an extra bit of review and this was perfect!
This dude taught me more in 9 mins then my teacher did in 2 weeks
It was this easy!? Wow thank you so much, you thought me what 3years of private high school couldn't! Thank. You sosososo much
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
I really frustrated with this due to taking it online, but this video has helped me understand it more thank you.
Ack! Thank you so much for this! I was totally confused on this until I saw your video! Thank you so much!
Thanks man, great teaching. Helped me out a ton
Getting some last minute studying in before my final! Thank you 🙏🏼
Long time viewer. Great instructive videos. Thank you.
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.
Thank u bro!! I watched a lotta Brazilians teachers but I can't learned it very well, u helped so much!!
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
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!
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!
Wow. This makes so much more sense now
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.
Glad it was helpful!
MARIO THANK YOU SO MUCH YOU JUST SAVED ME
Great video, helped a lot in collage cause I had forgotten about most of this stuff from highschool
Thanks now I’m ready for this exam
this video literally saved my life tysm
You couldn't have posted this video at a better time. You da man
Glad my video arrived at the right time for you Wang!
Fantastic 🙏 truly appreciate very much 🙏🙏🙏 awesome teaching skill 😇👍 thank you sir !
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thank you sir! 🙌🏼❤️
Great summary! Thanks for the comprehensive approach. I'll be posting this video as a reference for my students.
Awesome! Thanks!
Thank you so much, you make MATH challenges understandable and it may not be easy but we can learn from you.
Happy to help
Awalys impressive and understandable teaching... keep it up sir
Very helpful! thank you mario
Glad my video helped you!
Thank you so much this is easy to understand!
Glad it was helpful!
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. 😁
Wow, thanks!
Thank you so much! Tbh, I understand this a lot more than studying in my class
dude you’re fking awesome my geometry teacher is awful and doesn’t teach anything but with you i’m CHILLING. god bless bro
Glad you are liking my videos Sal.
Thank you sir
Great 👍 sir.
Learned this 3 years ago, forgot it, need it for SAT, now i know it. Thanks so much.
You’re welcome! Best wishes to you on the SAT!
W teacher!
This was extremely simple and helpful, thank you so much!!
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Thanks so much for your positive comment. Glad my videos have been helping you.
Thank you so so much with this video! It really helped since my geometry teacher doesn't teach us!!
Glad it helped!
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Thank you!
You're welcome!
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Happy to help!
I like how he simplifies things.
thanks
Thanks sir, it was very helpfull
Glad to hear that!
Thank u sir khan academy is stressing me out and this helped a lott
Glad my video helped you Lisa!
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.
good shit mario
hey
what if you’re given a triangle without labeling sides ABC respectively and there’s a missing angle at the top?
I might be a little late on this and I don't fully understand it either, but if you have the angles of the other two sides, you should be able to just subtract those two angles from 180, you should be able to get the missing angle. I might be wrong, but I hope I could help a little!
Ur Brian is so bright under the light
thank you you helped A LOT!!! may god reward you
For the first question what do I type in the calculator?
How do we plug in the cosine ratio into the calculator because I keep getting larger numbers instead of 6.7 6:37
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
I hope I can get a few things from this video
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??
you made me pass my test by .82% thankyou so much :D
wouldnt of been able to do it without your help :DD
Great job!
Thank you johnny sin teacher
Hi! at 8:28 shouldnt it be +198 to cancel -198? why is it also negative?
Yah u r right
How did you get the the 96 in 8:45 ??? Can you pls explain sir
God bless
in 5 minutes you explained what it took my teacher like 7 weeks to even do half
anyone else's teacher not teaching them and giving them these videos instead? rip
Will you explain ?
(e^ix)= cos x +i sin x
With examples
im asuming that you figured it out
I just need help with the calculator how did u get .805 I couldn’t get it
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
bro saved my ass, thank you.
Can you explain how you got 6.7 in the first cosine law example
This more recent video I did may explain it better for you: Law of Sines and Law of Cosines (Complete Guide)
czcams.com/video/x0_vS14mUt0/video.html
Wait how did you multiply by inverse of cosine with no degree measure
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 😢
2:02 why did u multiply by 6, is there any other way to solve without multiplying by 6?
You want to get the sinC by itself….another option is to cross multiply to get rid of the fractions. Hope that helps!
@@MariosMathTutoring how did you get the .805 and what did you multiply to get 53.7?
help how do I get the inverse cosine on the calculator? TT
Usually have to press the ‘2nd’ key first then sine, Cosine, or tangent
what iff theres no degrees or number inside the triangle
👍
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
Did you ever figure it out on why it was different
@@ryderdarden2152 probably cause it was in radians mode instead of degree mode
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😂