Trig Identities

[@TheOrganicChemistryTutor]

Trigonometry - Free Formula Sheet: bit.ly/47diggI Trigonometry For Beginners: kzbin.info/www/bejne/hoalYYeXj5yVnqM Final Exams and Video Playlists: www.video-tutor.net/ Full 2 Hour Trig Final Exam Review: kzbin.info/www/bejne/r6rKYotugpl8gdU Join The Membership Program: bit.ly/46xaQTR

[@Pugsgunsandstuff]

Fought the whole semester to keep my A, this is what's going to blow it for me. This stuff makes absolutely zero sense without a reference sheet or something.

[@derrickhill1553]

Hit them flash cards

[@jaythekillagaming961]

I had a 97 before the unit circle unit, now I’m at a 90. This stuff is my next unit and I’m so cooked goodbye my scholarship

[@RAW_EXEL]

This man literally has tutorials on every topic I want

[@twa9342]

The Organic Chemistry Tutor reigns supreme

[@caviwhy]

couldnt be even more perfect, literally learned about trig identities in class today and didnt understand it. immaculate timing

[@tufasteel2329]

bro this trig stuff is so fukin hard

[@Afters0nny]

@@tufasteel2329 I swear it’s making me lose hope I can only do math if I get the logic but what’s the logic here…

[@libertybee1307]

@@Afters0nny same my other classmates do it so fast and I’m here trying

[@whyhayden]

Memorize this bc I’m in college and having to come back to review this because I forgot most of them

[@MrDiceZack]

@@whyhaydenDo not ever memorize, it's better to understand

[@krisztian1238]

This the day I realized it wasn't all sunshine and rainbows😭🙏

[@thvtsydneylyf3th077]

you realise this aint no joke

[@inspirationalroseswashere..]

real?? trig was so easy until I got hit by this truckload

[@johnyjakey1488]

​@@thvtsydneylyf3th077no shit sherlock

[@panthusbg626]

@@inspirationalroseswashere..bro what is hard about this i love simplifying tri equations with idenities 😋

[@inspirationalroseswashere..]

@@panthusbg626 i’ll assure you that one month later I have returned stronger than ever 🔥‼️

[@friedhegg8874]

bruh literally two minutes in and you already gave me the best way to remember sin, cos, and tan. wow ur a legend

[@sasugamegami5113]

Bro teaches physics, algebra, chemistry, trig, basics of math, matrices, calculus, etc. What does this man can't do in the field of math?

[@rottershier6775]

Hes a God

[@riettaskai1970]

​@@rottershier6775 yeahh no

[@Sirosa-BM]

@@riettaskai1970 real

[@WaffelenSyrup]

I'm actually cooked bro

[@Rainbow-dj4ee]

LMFAOAO FR

[@rplaysdemgamez3746]

bro same oml

[@yigiter5404]

@@rplaysdemgamez3746 I know nothing man my test is in an hour

[@butter-oq6yz]

same

[@jasonhuang7512]

@@butter-oq6yz sheez my test at 5:30

[@Eeppydeepy]

Thanks, man. Been cramming right before finals trying to relearn everything, and this channel has been a life saver. Everything is explained so clearly and simply it makes trig seem easy.

[@ansmith460]

Thanks!

[@kimminson4436]

woaw

[@dsi476]

yo send me 2 dollars pls

[@thvtsydneylyf3th077]

legend! thanks for the support!

[@ChukwumaNdive]

This channel is by far my favorite KZbin channel to learn Math. Thanks for making these videos. I can only imagine the hours and effort you put in.

[@abigaleammons8574]

Bro literally my teacher only talks about donkeys in class. I mean literal donkeys. And yet I’m supposed to know this? This man has SAVED me

[@lilybreaths]

@nomant7 yeah they should enlighten us

[@wege8409]

Donkey A and Donkey B are walking toward each other on a dirt road. Donkey A starts from the barn, 15 miles away from the meeting point, at 1:00 PM. Donkey B starts from the orchard, 10 miles away from the meeting point, at the same time, 1:00 PM. Donkey A walks at a speed of 3 miles per hour, while Donkey B walks at a speed of 2 miles per hour. At what time will Donkey A and Donkey B collide?

[@lilybreaths]

@@wege8409 To determine the time when Donkey A and Donkey B collide, we can use the formula: \[ \text{Time} = \frac{\text{Distance}}{\text{Combined Speed}} \] ### Step 1: Calculate the combined speed - Donkey A's speed: 3 miles per hour - Donkey B's speed: 2 miles per hour - Combined speed: \( 3 \text{ miles per hour} + 2 \text{ miles per hour} = 5 \text{ miles per hour} \) ### Step 2: Calculate the total distance between them - Donkey A starts 15 miles away from the meeting point. - Donkey B starts 10 miles away from the meeting point. - Total distance: \( 15 \text{ miles} + 10 \text{ miles} = 25 \text{ miles} \) ### Step 3: Calculate the time it takes for them to collide \[ \text{Time} = \frac{25 \text{ miles}}{5 \text{ miles per hour}} = 5 \text{ hours} \] ### Step 4: Determine the collision time Since they both start at 1:00 PM, they will collide 5 hours later: \[ 1:00 \text{ PM} + 5 \text{ hours} = 6:00 \text{ PM} \] So, Donkey A and Donkey B will collide at **6:00 PM**.

[@lilybreaths]

@@wege8409 Let's break this down step by step: 1. Donkey A starts 15 miles away from the meeting point and walks at 3 miles per hour. To find the time it takes for Donkey A to reach the meeting point, divide the distance by the speed: 15 miles / 3 miles per hour = 5 hours 1. Donkey B starts 10 miles away from the meeting point and walks at 2 miles per hour. To find the time it takes for Donkey B to reach the meeting point, divide the distance by the speed: 10 miles / 2 miles per hour = 5 hours 1. Since both donkeys start at the same time (1:00 PM) and take the same amount of time to reach the meeting point (5 hours), they will collide at: 1:00 PM + 5 hours = 6:00 PM So, Donkey A and Donkey B will collide at 6:00 PM.

[@Billsomebody89]

30,60,90 and 45,45,90. The good ol' Right triangle basics. Your channel helped me out quite a bit in my trig class.

[@REAMtheDream]

The first Organic Chem Tutor Video that got me more confused than I was

[@ashistoxic8447]

the timing of this video is actually perfect. I have a test tomorrow and I need to know my trig identities,

[@fwoopp9777]

Babe wake up, The Organic Chemistry Tutor dropped a new banger

[@zdrafts_]

Man may God bless you though I paid a huge sum of tuition fee the whole year you're gonna save my exam a month ago I'll return with an A* in Gcse Add Maths (In Sha Allah) Y'all pray I get an A*

[@Gavin-N]

did you get an A?

[@AbdulNassiffTanggao]

This was our lesson earlier, and I almost fainted because of this

[@gamereplixer8521]

I have a trig exam on this exact content tomorrow, big praise.

[@TheOrganicChemistryTutor]

This video can help you with your Trig final exam: kzbin.info/www/bejne/hXLWk6tqiaqhgpI

[@ramusubedi7514]

thnks i love this chanel​@@TheOrganicChemistryTutor

[@megufan6955]

We are absolutely done for 🗣🗣💯💯🔥🔥🔥

[@GenghisKhanResurrected]

I wanna meet bro one day

[@KritarthaSharma]

fr 😭

[@totalcriro]

😂😂

[@JonathanFuentes-n9s]

more helpful than what any teacher has done so far

[@mrblue2052]

your voice never changed.

[@Turboner]

Bro right after my trig unit just ended. But I got the pre-calc final. Thanks for uploading! You da man. Wish me luck!

[@TheOrganicChemistryTutor]

This video can help you with your Pre-calculus final exam: kzbin.info/www/bejne/ipuQh2mBo9yAa9k

[@dakamary9506]

Though my test was on Monday, your previous video for trig identities helped, I'll make sure to watch this one too

[@Sydneystar1]

thank you very much sir I’m in Uganda but before I saw your tutorials I was lost coz math was cooking me up So thanks so much sir. 🙇‍♂️🙇‍♂️🙇‍♂️

[@SruthiLijil]

I studied all this with great interest while studying in college. But now after 13 years it was very difficult to recollect. So when I go for an interview for the position of a mathematic teacher to answer the trigonometric functions was a difficult task. But this video helped me to remember all the trigonometric functions. It is really helpful for me. Thank you so much.

[@DrJacob-z6l]

Everything was understandable till 8:00

[@jddrew00]

Take a look at the unit circle and try some values. Sin(60) = Cos(30), for example, is easy to see visually.

[@BuchiClon]

Thanks!

[@plasmazammy3894]

I’ll be dead by Tuesday

[@oklaserr]

real

[@studysuki80]

are you still alive?

[@tejetski]

This man finna boost my sat score by about 100

[@fidelisikhifa4510]

Thank you so much. You made me to conquered my fears. Thank you so much. You broken a complex maths into parts for my understanding. I appreciate you.

[@mervlovesteddys]

this is actually make me cry

[@T-T_Angel]

Next year ill be taking calc for my senior year in high school so i decided to put in the hours this summer. i am 8 mins into this video i can feal an increasing pressure in my skull and that's a good thing cause am absorbing the information. But its unreal its all of this is packed into a

[@Wheezy101]

i got a test tomorrow in pre calc on trig as a whole. i need to be able to graph all trig functions, all inverses, know all trig indentities. i need to know when functions are odd or even for graphing. i need to know inverse trig functions and inverse trig relation. Right now I currently don’t know anything other than graphing a sin graph. Hopefully an All nighter saves me

[@jackhammond8817]

to be fair this video is a complete shit explanation

[@erdog8394]

why do you not explain where are these coming from 11:40

[@abd1x7]

this man is way too chill

[@badoibaboi5457]

how do u know when to apply a trig identity? is it necessary to apply an identity everytime u see one, or are there times where leaving the trig expression just as it is is better than applying an identity?

[@PaytonShaw-d5k]

You covered just about everything here, nice. Got my final for pre-calc tomorrow

[@qtastrophysics2581]

15:44 I love how you say let me say that again

[@dman2204]

Thank you for uploading educational content every time!❤

[@TheOrganicChemistryTutor]

No problem

[@williamhu9567]

@@TheOrganicChemistryTutor THE LEGEND HIMSELF HAS SPOKEN

[@ilo9339]

​@@TheOrganicChemistryTutor does JG stand for julio gonzalez?

[@GitaPrihatini-h8v]

thank you for explaining this chapter in a very systematic way, it really helps!

[@Sirosa-BM]

y'all I am 15 and applying for college and I need to have this down! So thank you SO MUCH!!!

[@dalisabe62]

Very thorough and organized!

[@christianajoseph3189]

Y'all have to agree with me,this guy is a god❤

[@daiminh010]

Man, this topic is killing me right now. Soo much memorization its definitely the hardest thing I've ever done.

[@brenytakz]

Stop reading comments and concentrate 😅

[@Hridhay7]

the goat

[@ElizabethNdalama-j6d]

😂

[@ToneyBlair-t6q]

😂

[@Ihni2000]

I am the king of procrastination, you cannot make me!

[@lavabhai]

14:07 u can use formula of (a+b)(a-b) =a² - b²

[@mccauleybacalla2228]

coscosb = 1/2 [ cos (a+b) + cos (a-b) ] 21:40

[@yahdz8188]

Got me through college bro shout out to you

[@altheapalis]

the OCT never gatekeeps, what a king 👑

[@Tomas-zv2js]

The red laser pointer does help with the ADHD. I think my attention span is able to keep up much longer now. Thank you!

[@onfire1341]

Very helpful content! Appreciate the hard work! Keep it up🌟🌟🌟

[@chisomeze4626]

Thank youuuuuu 🥹 I have exams tomorrow by 9am, I'm so happy 😁

[@gamer7x325]

I’m just watching at this point with absolutely ZERO thought behind my eyes… I’m absolutely cooked ts makes no sense 😭😭😭

[@EnigmaScrolls]

It's the first tutorial of your's that I didn't get anything🤒🤒🤒

[@mazubahambizi5801]

Broo. This is so complicated, I am basically lost at this point.

[@gonzaldinhoisgod934]

If I don’t pass trig this semester…my dad’s gonna shit in my mouth

[@Tangledangle-oj2uf]

Kyler

[@nimakojnr6178]

The Organic Chemistry Tutor is too good, man! Clear videos check, eloquence check, and super intelligent double triple check

[@njorogesteven621]

I just master

[@krylaarualla7313]

This is really amazing, I have my midterm exam today

[@over_zeal0us]

Im dropping out bro

[@mc2smith370]

At 10:04 isn’t the sin of 45 degrees equal to 1/root(2) ? Please feel free to correct me or to explain how he got root(2\2). Thanks :)

[@mc2smith370]

I watched one of his videos, you rationalise by multiplying 1/rt(2) by rt(2/2), hope this helps anyone who made the same mistake I did.

[@GeraldBosley-cf8ng]

I can handle any mathematics up to calc 3, but I still get these trig identities wrong. I have got to figure out a system to really commit these to memory because I should not be having this problem.

[@siro5728]

i have an ib math external in 1 month and I find the subject hard i need help

[@iliyasesoof17]

bro i'm so screwed

[@NaftaliSpodek]

I actually needed to watch this video For trigonometric Integrals It's a good review for that and also In polar coordinates

[@VanessaJimen3z]

I was getting frusterated when he was bout to skip explaining cos20=cos^20-sin^20, then he did, and I was relievedddddd

[@user-xy5yg6se1k]

what's the use of the double and half angle identities? why don't we just double or half the actual angle??

[@lisai.9812]

Your videos are an absolute godsend, but that red dot was soooooooo distracting. 😞

[@Syntaxxed]

this is already great but would be even better with a visual representation on the unit circle. But thanks for saving my grades tomorrow!

[@jamesragnarim8148]

Pls can u show how to calculate antilog in fx calculator

[@gamerjames8432]

I suggest changing the background to more like gray so it is easy on the eyes . Btw appreciate your dedication Man :)

[@kamikira5454]

Whoever thought it was a bright idea to make this stuff a requirement for biology majors needs to arrested.

[@chitogekirisaki570]

😂❤️

[@Michealorina]

Are we supposed to cram this😢

[@aimusoorii4484]

Lol Im binge watching every trig derivation vids for my upcoming midterm exam

[@josephyaw4112]

I think you interchanged the tan and the cot in the beginning on the video, please kindly check.

[@Shinarambo001]

wow he is still replying and liking comments!!! Can I get a like from Mr. Organic chemistry

[@multimeme5935]

no

[@mrweja]

Dude's so genius.

[@joeyoshs]

What's the best way to get a tan? Having the Sun (Sine) over the coast (Cos)!

[@Iambusyfuckingmydeluluwife]

haha... funny

[@thomasogbonna]

I really needed this. Thank you!!

[@EOMMunaware]

Thanks bro I could use this for my calculus 1

[@StanziiThompson]

Thanks bruhh you help me a lot....❤

[@mathiaskipronokirui]

Thanks really a good teacher❤

[@mhecca6856]

Where can I find the exercises or example of this topic?

[@doritochan001]

I love you, thank you for this video. Very concise and understandable.

[@SamsHamlet]

Please go over picards methods

[@dbztimes5808]

Last minute studying for a placement test and I haven’t had math in over a year 👍

[@debbiedominguez5373]

Please avoid using the purple marker. It's extremely difficult to see. Maybe use yellow??❤

[@YUMANOAH]

sin45=cos45=1/root2 not root2/2 , anyways gr8 video

[@Idealess.]

1/root2=root2/2, root2/2 is rationalized

[@asantedan-zk4zx]

Continue good word our tutor

[@TheMathematiciankfm2735]

nice video,well explained

[@magdzeidan5691]

Yea it’s over

[@es8co8rt2004]

You have to live this to have this locked in your memory…😢

[@akshajande0519]

The link to the practice problems doesn't seem to work 😢

[@HopesonGamadzi]

Thank you teacher God bless you

[@ahmed._.]

“Engineering is fun” they said…

[@leviuncleman2637]

Final exams tomorow 💀

[@auspicious.emilia]

Das crazy r u perhaps in lasalle HAHAHA

[@sfatimams1]

9:58 is it not 1/sqrt2

[@manavclips]

absolute king