Trigonometry Law of Sines / Sine Rule
HTML-код
- Опубликовано: 1 окт 2024
- The Law of Sines (also known as the Sine Rule) is a method for working out the angle or side length in a non right angled triangle.
Trigonometry lessons from the mathiest math channel - the tecmath channel!
To support free math by tecmath on Patreon (thankyou): / tecmath To donate to the tecmath channel: paypal.me/tecm... To donate to the tecmath channel: paypal.me/tecm...
To support tecmath on Patreon: / tecmath
To buy tecmath mechandise: teespring.com/...
2024 your videos are still helping people. Thank you so much
With ancient memories of Trig, (I'm 76) the brain was ahead of your description. You teach logical progression discovery to delight any student. Not many of us had such genuine teachers.
Well said.
Are you still alive
@@josuke8612 Nope, died last year. It was hell.
@@Mrbobingerip bro
@@drillg2245 Too late. Bro. The big guy says he's already got your number.
Can't believe you're still uploading, subscribed!
bro sounds like he's on the verge of laughing/yawning
Thanks.. your videos are great for reminding me of all the math I learned years ago and have forgotten. Thumbs up!
I took a trigonometry class in college. I used to be afraid of forgetting the math I had learned once I was out of college. I’ve forgotten the math...lol
It has been about 20 years since I learned trig and I am about to attempt the Accuplacer to get into accounting classes in the morning. Thank you for making this make sense again.
Really missed your uploading but then again who didn't?
Sir ur awesome
I was lost on how he got Sin37⁰= 0.60. So I did
x multiple by 0.60 = 0.99 x 7
X×0.60= 6.93
Then divide by 0.60, since you want x by itself
X= 6.93 ÷ 0.60
I thought I was the only on who does 6/2=3 to know how to rearrange a division equation
5:20 I thought I was the only one that does this! Every time I would substitute my algebra equation with the friendly and easy to work with number to validate my point.
These videos are seriously awesome. You got a subscriber !
All good stuff to help me retain some math out of school. Meanwhile im very curious how you produce your vids - do you use some sort of pen pointer/mouse?
You started off explaining then switched to - not explaining but just showing - this is what you do next. That’s when you lost me.
Explain things, do not just show.
Thank you for helping me with my math. Now I am currently studying in the best highschool in our country because of you and I am oftenly participating in national and international competitions thank you for everything.
how is it going now?
am i the only one who laughed when he said 66666666666 at 5:16 😆
I was just learning this and you uploaded
same
Dude me too
Who would guess i would learn mathematics one day in 10 minutes while I'm shitting ? Technology, bitch!
Yo
i have an interview next week for a machinist position at Pratt & Whitney and i was revising the basics and wow your videos are great. very well spoken and made as simple as needs be. im subbing
No one:
Not an absolute soul:
Mr bean:I studied TrIgOnOmEtRy
I feel like trigonometry was figured out by someone who was too lazy/bored to grab a protractor and measure angles 🤔😂
I think the motivator for trigonometry was more about finding distances than measuring angles. Consider Thales who, in the 600s BC, used geometry to calculate the height of the pyramids and the distance to enemy ships. I came face to face with the urgency to measure distances when I used a pocket compass & the Sine Rule to calculate the distances between magazines. It beat dragging a surveyor's tape through rice paddies. Most surprising to me was the reaction of my coworkers. You would've thought I was using witchcraft. Naysayers all, but no volunteers to drag the tape through what amounted to raw sewage. I thought everybody had studied some trigonometry in high school or were at least familiar with the concept, but I guess not...
So these rules work with non right angle triangle. Do they also work with right angle triangle?
When labeling the angles, does it matter which order it is in?
No
Can you send a link to your cosine rule video?
I am assuming you work out the sine numbers on a calculator? and not by manual math? I ask because there was one school entrance exam that would not allow calculators in the test. Weird but true. It made be realize the student needs to know all ways to work out problems.
Hello Tecmath, have you done a video about frequency and frequency density?
if you're on desktop, go to his channel, click the search bar IN THE CHANNEL and then search frequency and if he did it'll come up
Hang on, how did you get the Sin of X and 7? What was the process to get 0.99 and 0.60???
He did a video in that I reckon.
To get sin97 you’ll have to use a calculator or a more archaic trig table.
On the iPhone calculator for instance (use the phone on its side to get the full scientific calculator) type 97, then press sin.
It says 0.99 - this is further explained in the video on trig.
@@tecmath next time show it in the calculator you bozo
Oh my gosh, I feel like a genius right now XD. Great video, helped a lot
I'm genuinely curious how people figured this out and proved it. I love proofs.
never knew thor teaches maths
کاملأغلط است ابلهی
More Trig videos please! : )
Nobody:
Tecmath: *eye*
Your channel "About" confirms that 99 is an IQ score.
Your comment suggests that number is exaggerated.
@@facitenonvictimarum im dying lol
Why is the answer 54.14 and not 54.09?
hello can you go over cosec rules please and also double angle formulae ad compounds angle formulae
I have a doubt: Why did you use sinA/a for the second one and a/sinA for the first one
i think he said you can use either and it doesn’t matter in the beginning
Ahh
You saved my life my god the test is tomorrow
Am looking for how I would find all sides with sine rule
Sorry if I'm an idiot, but I'm not familiar with two of the symbols.
3:56 before "a" on the bottom side. Is that a Greek 𝟀 chi ?
6:55 above "A" on the bottom angle. Is that a Greek ϑ theta ?
Just a letter X and the sign for theta is just a zero with a line through it
@@Johnnymagnet92 thanks. I thought maybe he was throwing in some symbols with special meanings.
First
Helped me get into grammar school
I’m a 12 year old trying to learn trigonometry in hope of getting better grades in math
Same
3:21
4:30
❤❤❤
WOWW THANK YOU VERY MUCH
👍👍👍👍👍👍 from India
This is great
Nice! I love your videos!
ty
Thankz techmath
Thank u
why dont u use sin c tho
u can substitute any such as u can go with sin a and sin c or sin b with sin a cuz mostly there will be one angle/length that you need to find and calculate for
(ik this is 1yr late lol)
Can't you at least show the angles to scale?
This is Low Tech Math.
Subsctibe?? Nahh...
Sorry mate....I agree... it bugs me too. I’ll try not to let it happen again:)
@@tecmath
OK, I'll forgive you this time -- but only *once!* 😀😀😀😀 ..... (you're a good sport)
Subscribe ?? ... Yeah! -- as if it made any difference