Intro to Trigonometric Identities - part 1
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- Опубликовано: 7 фев 2025
- In this video I go through a brief introduction to trig identities. I look at well known identities such as sin^x + cos^x = 1, then go through some example problems. Part 2: • Secant, Cosecant and C...
practice problems: bit.ly/2ITWDYL
Support the channel: / @mathonify
I know this is a few years later, but thank you so much for making this. I was lagging behind my class, and I didn't know what the hell was going on. This really helped me out :)
Apologies for the sound quality in this video! I am clearly not an expert when it comes to microphones 😬
Maths Explained
Yeah you should be sorry 😐
It’s all good 😅
blessed favoured
It's not ok😡😡
Theres nothing wrong with the audio
Ok good to know thanks :) I thought it was a bit distorted but I am glad it's ok
Who else is here bc their maths teacher can't teach
Not me
My teacher is eddie woo hehe
Online classes are basically impossible to understand...
@@Frosty_V0 thats gotta be painful, can't you reach out to a tutor?
I can relate
Me studying in class:understand 10%
Online:90%
me to
The truth in this 😭😭😭
Are you in 11th or 12th grade
True
@@mellygigienglish 11th
This is the hardest part in trigonometry, lets be honest 😔
yaessss,no lie!!!
I totally agree with you 👍
Yes, for sure
I think its the application.
Not really if you get the hang of it
My teacher is trying to cram this into us in 3 days then we gotta take a test. Like hold up
try cramming into 1 hour
@@sophiafernandes4738 try cramming into 10 minutes 😭
@@mukwa2062 The guy explaining almost did!
Study pug ad:what ? Still searching RUclips for math problems?
Me:YeS
Study pug ad:are the videos from 2006 really helping ?
Me:yes,yes they do
Study pug ad:you wasn’t suppose to say that ;-;
The fuck I swear I read your comment as the ad was playing wow
😂😂😂
I have premium but i watch ONE trig video on my friends laptop and I wasn’t signed in and I got that ad, I was like they can’t seriously be putting this ad right before a math video
🤣🤣🤣🤣🤣
I reacted with that same dialogue when that ad was playing lol
I won't even lie, I am doing CS at a rlly good school and I legitimately never understood pre-calc during HS at the fundamental level. With my weak foundation, I was always confused on small topics such as this. I am just brushing up on the small things that bothered me and oh my god why does it make SO MUCH SENSE now?? It's based on the unit circle!
I’m convinced that most of my teachers just demonstrated their ability to produce the answers to the problems in their textbooks the way the books said that they were supposed to. I still find it hard to follow.
Thank you. Would it be possible if you could make an as level playlist with all the important content
Good idea
Thanks very much. Really helped more than three years at my school.
Clear explanations! Thanks Sir!
After this video, I could finally solve these equations. Thanks a bunch sir 😊💐
I have a math test in 20 min and i m trying to learn the entire unit since i legit slept through my whole class this past couple of months
did you pass
@@emilylaverty6708 obviously not
What happened
@@emilylaverty6708 i got a 73 which is terrible considering i was using Photomath and Mathway and Desmos😳
@@tylerl4768 next time study earlier I always go two units ahead cause sometimes my teacher goes fast
Have a test tomorrow, it really helps to get a refresher for a lesson we went over once days ago
😓😅
For more help with your class work,contact us at oyugiochieng1@gmail.com
when your teacher cant teach but gives bad grades so u have to teach yourself
My teacher is the best in the world and I'm watching this just because it's part of my syllabus
He makes it so simple
i dont even get my classes in english so tell me why some random guy on internet explains the subject better than teacher who teachs in my native language, smh.
LOOOOL
Very well explained
hello from Turkey guys ^^
and thank you for your service
Türk hocalar yetmedi ,ben de yabancı kaynaklara başvurdum akajsksksd
@@meldailyy İngilizce geliştimek için hahshaha
You helped me grasp the concept. Thank you:)
I'm here to know more b4 my teacher teaches...this video is good
I am in grade 7 but I understand everything he said. Great explanation
It is impossible
🤣
Best explanation ever🥹🥹🥹
Thank you so much 😀
Excellent explanation sir
Thank you for this! It really helps.
Thanks alot man good recap for me
Oh sorry you said A2 trig identities. I will do part 2 next
Thank u sir
bad
Thank you I love a bit of trig :)
Thanks, Sir
Thank you for this tutorial
Thank you so much this was helpful
Thank you! Very helpful!
im yr8 and i am watching dis..
we r learning this..
Masha Allah very nice video
I find the usage of ≡ rather confusing because of its usage in modular arithmetic as congruency. For me atleast it implies similarity while not necessarily being exactly equal, like having the same remainder.
Apart from that, great video.
Thanks for this vid, massive help
Very helpful video + love the outro from Spanish caravan
Thank you very much this is very helpful
Amazing 🔥🙏
Thanks it help me a lot
In every video , pls leave some problems for us to solve ourselves 😁
Thank you
Thank you very much
Very informative video
Examples of questions to prove that a value equal to a certain value using tan through demovres theory
Great video, thank you!
Good work sir🤝
No way this is as easy as the video makes it😱
Please,how did you come about expanding Sin^2tita and so on,how did we land on 2sin^2tita
are you sure that its congruent and not equal?
Yep I'm dead
same tmrs my math exam
Due to specific reasons I shall be ✨passing away✨☺️
Yall can do this 🕊🌞~ from a student who cant do this
@@fayth3188 kkkkkkkkkkkkkkkkk
thank you so much
Thank you 😔❤️
Thanks man, I love trig functions but sadly they barely appear in my career lol
Thank you!
Does this even count as math at this point? I’m struggling to hard with Trig. This topic is especially difficult.
Why we assigned the hypotenuse as 1?
is it just me who thinks this man sounds EXACTLY like korg from MCU movie. (the rock guy)
Good video keep shining
TYSMMM I LOVE YOU!!!!
Yah these identities are easy,, try deriving the Identity
tan (A+B+C); it's all complex fractions
How is cos^2/cos^2 = 1 ? 🥲
Anything divided by itself is one.
I’ve just finished school, and now I get suggested this? Too late RUclips. Too late…..
thank u very very much
Very nice video stay blessed
I study in arabic i changed the language started studying in English as if that will make me less dumb
Takbir
Just a meme
😭😭😭😂
😂😭😭😭
I’m here cos my A math( in Singapore we split math into additional math-a math-and elementary math-e math-) teacher doesn’t have time to teach me
Sin²x+2sinx cos x + cos²x
1+2sin x cos x
Can we exchange the arrangement like
Cos²+sin² not sin²+cos²?? 🤔 Or it's false??
I want to know the answer
yes due to the commutative law. a + b = b + a
I was understanding at the beginning and then all of a sudden I lost it. It was like magic. It was like witchcraft. All of a sudden everything became so blurred. Absolutely witchcraft.
Thank you for this. You helped me better than my teacher lol
Stop reading comments and pay attention
One I couldn't solve in class but later when I finished the course..here
(cos x+ sin x -1)/( cos x-sin x+ 1) = sin x/( 1+ cos x)
You'd be tempted to clear fractions but I'm told that is not the correct procedure
only the Pythagorean theorem works..
sin ^2 x + cos ^2 x = 1 is all ya need to know
Thanks- Sophomore in College
Good video but i hate trig so much 😭
Same and I want to major in Engineering lol
Relatable
hello sir , is this all required for cie pure maths 1
therfor left side will never be equal to right side
In ex 2 i didn't get how you did the multiplication for (sin cos)(sin cos)
Pls explain and thank you.
Which part didn't make sense? If you are not sure about expanding brackets check out my video on that: ruclips.net/video/63oU-AIzTcE/видео.html
Please, how did we land at 2sin tita cos tita
i like your voice
Your videos are beautiful
U got enough ads?
Just trying to pay off my massive student debt 🤦♂️
@@mathonify ye don't worry, I will have some of my own soon.
Masha Allah
Still don't get it
🎉🎉
Great
Why sin^2+2
Hello,you can contact us at oyugiochieng1@gmail.com for more explanation.
Странно, что они используют тету для обозначения угла. Мы всегда альфу и бету юзали
это именно то, что делал мой учитель математики, ха-ха
this guy is really good but your writtings must be a little bold
2024 were still watching this
Why tf is this in a lucky block race in minecraft playlist??😅😅
I’m trying to understand English ,because i have to study for my quiz .
Em why am i watching this probly bcs im bored
New friend here
Iden-tities
intro??????????????????????????????????
i dont fkn get it