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How to find the angle between two vectors

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Learn how to determine the angle between two vectors. To determine the angle between two vectors you will need to know how to find the magnitude, dot product and inverse cosine. Then, the angle between two vectors is given by the inverse cosine of the ratio of the dot product of the two vectors and the product of their magnitudes.
#trigonometry#vectors
#vectors

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20 авг 2024

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Комментарии : 178

@ivyhutton6378 4 года назад

Why did it take our teacher 45 minutes to NOT explain this, but this guy got it in under 3 minutes

@AHMED-ln1kz 2 года назад

My teacher take 1 hour to NOT explain this 🥲

@guylewis7418 10 месяцев назад

Maybe it’s a review?

@tylerpauletti4265 5 лет назад

For those who are struggling with putting the last part in the calculator, I put it in as "cos-1(27/(5*square root 34 ))" with parentheses around the denominator as well

@mckayladebonis1990 3 года назад

Thank you so much!! I was wondering why it wasn't working!!

@ryleeshelton5982 2 года назад

Godsend🙏

@elizabethcoyle4851 2 года назад

Thank you!! I was freaking out

@joaomqb 2 года назад

oml thank you

@Emmiiillyyy 2 года назад

It was driving me crazy trying to figure out how to put it in thank you!

@ayahotallah3020 10 месяцев назад

I HAVE to let you know how much your videos have helped me through pre calc. Its hard to understand my teacher sometimes, and your simplicity explaining everything has made it so much easier! Really appreciate you posting all these!! I'm sure they are helping others just as they helped me :)

@garrettcrouch2086 3 года назад

ngl just watched this to find out how to calculate the angle between 2 points in minecraft so i can make a straight tunnel ... good vid though

@rocker4579 7 лет назад

This dude looks like a super villan...or Pitbull

@brianmclogan 7 лет назад

haha

@MovieClipsSHOW 4 года назад

@Christian Hayden what you want him to say

@farsfuad3002 4 года назад

more like jonny sins

@rocker4579 4 года назад

make math SeXy again

@travanrobinson729 4 года назад

He's Lex Luther...🤔 no wonder...

@brianmclogan 11 лет назад

awesome! Let me know if I can do anything else to help you along

@ImranKhan-jy5ze 5 лет назад

vry good math video so tnx and rspct from pakistan i hope u r ok but from where are you.

@srinivassr3826 4 года назад

How to add u v.. that means u+v

@s0r1ns3c 3 года назад

This man has been consistently saving my life in math for like 7 years

@GabrielChillin Год назад

Seriously from freshman year of high school and now my junior year of college😂

@tomscott3 4 года назад

2:17 best part of the video. ;-) as a recovering software engineer, i'm tutoring someone in this stuff and had to search the memory banks....or find this presentation.

@MovieClipsSHOW 4 года назад

Watching this at 2am and tomorrow at 8am my final exam :(( Pray for me all!

@tomscott3 4 года назад

haha. how'd it go?

@ralphdennis787 4 года назад

@@tomscott3 How does someone take finals 4 weeks ago...is that like short semester or something? Also, if they were up at 2am with an exam at 8am, I'm guessing it did not go well.

@ron4212 3 года назад

@@ralphdennis787 my uni has finals at the end of every quarter. we take three courses per quarter so I guess they do the same

@freddrrr 7 лет назад

"Okay.....so much for that video now" HAHAHAHA

@brianmclogan 7 лет назад

what happened?

@freddrrr 7 лет назад

Brian McLogan You told that to one of your students who got in the way of the camera lol

@Ahtohallan. 2 года назад

@@brianmclogan 2:18

@literallyazucchini2634 3 года назад

Your videos have helped me so much over the past few years thank you so much for posting these for free

@lewisjones284 3 года назад

1:18 This confused the hell out of me until I realised that the equation looks the same when you both multiply a and b by themselves, and multiple a and b together

@harrisondarby1333 5 лет назад

You are such a brilliant lifesaver. Thank God for you and your channel!

@casey5642 3 года назад

These students are very lucky to have you.

@maciepatane3613 Год назад

You are the best math teacher I never had. I watch your videos all the time to get me through me math homework. I am going to school for Aerospace engineering and you have helped me through my exams numerous times. I love your videos, you are so helpful, thank you so much!

@iwatchvideos4051 Год назад

Yeah same here. I'm trying to get an associates for aerospace engineering

@ethan_7480 5 лет назад

Thank you for posting this. I was not getting it at all!

@AlejandraRamirez-ys3gs 6 лет назад

You are a life saver honestly I owe you my grade “A” (: thank to you and your videos. Keep making more you will help other like me. And who knows I might keep watching your videos in the future 😁

@brianmclogan 6 лет назад

you are very welcome! happy to be there for you!

@ahmadjohnson9032 3 года назад

U make it much easier to understand than a lot of my professors; preciate the content

@teemum3313 3 года назад

I calculate this way Arctan(5/3) - Arctan(3/4) = 22.16634.... Angle - angle is the answer.

@Investment_wizard 4 года назад

Our country's Maths teachers are best. Love my Indian maths.

@rubendragan6514 4 года назад

many thanks from Romania ,helped a lot.

@t-h787 7 лет назад

Great video!!

@brianmclogan 7 лет назад

appreciate it

@ariffj7553 8 месяцев назад

You look and sounds like mr. Lundy from young sheldon, that's what fun watching you teaching

@PramodKumar-or7eu Год назад

Very nice teaching 😄😄

@tkjams2482 3 года назад

You are the GOAT.

@aicsynthesizer 6 месяцев назад

never was explained in my class, but thank you.

@jaidenzheng6969 5 лет назад

Taking my final right now, and my teacher left the room, thank you this video saved my ass, I completely forgot the formula.

@jaidenzheng6969 5 лет назад

@TheFreerunner lol, my teacher doesnt really care if we use our phones.

@josh.c36 5 лет назад

wtf

@venkateshvanapalli3013 11 месяцев назад

you're really amazing I really appreciate for your hard work keep uploading more videos

@simplyelite7063 4 года назад

what if one of the vectors was negative what would u do then

@abdallahismail8787 6 лет назад

Tnk u for the vid. Now I can easily do my homework

@brianmclogan 6 лет назад

awesome! happy to be able to help

@FurryAzzre 4 года назад

Thanks Brian McLogan with my Trigonometry.

@kingfootball3602 Год назад

Shout out to the kid that wanted to be in the vid 😂

@CycloneSlayer 2 года назад

bro ur litterally helping me pas pre cal

@ansbjer 6 лет назад

1:55 me

@brianmclogan 6 лет назад

haha

@whatamitalkingabout3 6 лет назад

nice

@DEN-iq7qn 6 лет назад

you are always late like me 😂

@hiwetsemere7104 5 лет назад

thaaannnnkkkk you. I was getting frustrated cuz i could'nt get it :)

@jacksonwilliams8433 5 лет назад

This guy saved my ass like 9 times lol

@sanadGM 2 года назад

9 years and i study this for my exams thanks bro

@sabrinasucces2743 7 лет назад

Got everything until it was time to put it in the calculator

@OmarMohamed-og6oj 5 лет назад

Thanks and again thanks

@raferalstonisgoat4457 6 лет назад

dude looks like a badass. Awesome video.

@brianmclogan 6 лет назад

haha appreciate it

@albert8149 4 года назад

you saved me! i really appreciate your teaching

@lucaseastman1877 3 года назад

Very helpful. Thank you

@Alexander-jb5zj 7 лет назад

Great content!!!!

@brianmclogan 7 лет назад

thank you!

@mahadi6511 9 месяцев назад

Thank you sir ❤

@BLDabderrahime 10 месяцев назад

thanks , its now much easy

@tkxxxx 4 года назад

not all hero wear cape......

@marissacampos5749 5 лет назад

Super helpful, thank you!

@Lamya143 3 года назад

thank you for educating me for free while my college professor teaches like its ASMR

@randerhaywood1163 5 лет назад

Awesome! Thanks.

@geraldclark5079 3 года назад

awesome

@harnaamsingh3163 7 лет назад

awesome sir

@brianmclogan 7 лет назад

happy to help

@denesharoberts9891 8 лет назад

Thank you soooooo much Mr. McLogan!!!!

@brianmclogan 8 лет назад

+Denesha Roberts you are very welcome! happy to help

@tenshikn 2 года назад

Thanks so much

@Ahtohallan. 2 года назад

2:17 hello habibi 😍😂🥺

@Random_Person1023 2 года назад

i see people saying their teachers didn't teach this, while I'm just here cause i forgot the difference between the like 10 different formulas I'm learning with vectors lol

@brianmclogan 2 года назад

Haha

@milomega1011 5 лет назад

Thanks for saving my ass for today's math test

@AdrienGaryLucca 3 года назад

The example is quite confusing because the way the dot product is made is not clear: with the values: u = = v = = the dot product being: u.v = 4*3+3*5 it could mean: u.v = a.b+c.d or u.v = a.c+b.d Would have been great to choose an example where the values of "b" and "c" are different...

@AdrienGaryLucca 3 года назад

If anybody is confused by this, here's the solution for the dot product: u.v = u.x * v.x + u.y * v.y

@zeyface6366 Год назад

Thank you! I was just about to make the mistake of thinking that Should have been obvious but it's easy to overlook things

@nimnanilwala5245 3 года назад

Thank you Sir....

@suyogmathwale4224 7 лет назад

Sir, I am having problem in finding. Will you please solve this for me? Ex.Find the angle between vectors A=-2i+3j+k and B=i+2j-4k. Please....

@brianmclogan 7 лет назад

Sorry I am am unable to work on additional problems as I receive a lot of requests and am preparing for next year

@caio-jl6qw 7 лет назад

cos^(-1) [(2*1)+(3*2)+(1*(-4))]/(sqrt(13)*sqrt(21) = 75.99°

@microwavepopcorn3570 7 лет назад

Sub 1 in for K and I and do the same as the video.Its no different with 3 values

@shkoorabdul3807 6 лет назад

Your angle is 81.90 degree

@mohammadkhaled-dt9bt Год назад

Love from INDIA

@brianmclogan Год назад

😍

@brandonpadilla2084 7 лет назад

can you please explain how you plugged it into the calculator my calculators on degrees and when i plugged in cos^-1(27/5 invrese34) it doesnt work

@brianmclogan 7 лет назад

cos^-1(27/(5sqrt(34)))

@irisakay3878 4 года назад

Brian McLogan That still didn’t work for me!

@liofan7266 2 года назад

Thank you

@KokahZ777 5 лет назад

1:56 oof

@brandonduong 3 года назад

fr man got the shoo motion

@unfairgame4816 7 лет назад

when ever i plug that last part in my calculator gives me a domain error. what is causing that?

@brianmclogan 7 лет назад

you must be typing it in your calculator wrong, make sure you use parenthesis

@parzingtheasian 4 года назад

@@brianmclogan actually its probably getting a domain error because he didn't switch from radians to deg or vice versa...?

@Jusexle 2 года назад

i understand know thank you so much

@vidal9747 4 года назад

Where this formula came from? That was what I'm looking for.

@izzym9385 Год назад

Oh man, I’m just skipping every other video at the top of whatever dumb search engine I’m on to find these videos. Nothing comes close, and certainly not my own teacher.

@iamsofiazakaria 3 года назад

thank you

@alicewang5398 2 года назад

please teach at my high school

@melonenkopf2790 3 года назад

but noone on the internet tells WHY the formula works, eventhough its not that hard to explain

@joaoalves1046 5 лет назад

thank you, sir

@hindalmarzooqi9484 Год назад

When finding the dot product did he do, x1 * y1 or x1 * x2? because both points have the number 3

@lando9670 Год назад

He chose a poor example, since they both look like you are multplying x*y, but it is x1 *x2

@zoomfr1 2 года назад

thank you agent 47

@LegrochaTV 4 года назад

Thank you 🙏🏽🙏🏽🙏🏽

@chriskalil4359 4 года назад

you seem like a cool dude

@atulanandoraon8252 5 лет назад

It's funny at 2:18

@erinr5723 7 лет назад

lifesaver

@brianmclogan 7 лет назад

happy to help

@kumarchari3665 5 лет назад

Could you please explain how cosine inverse comes ?

@emmanuelu 3 года назад

thx

@gabriel9668 4 года назад

thanks!

@canadiannuclearman 5 лет назад

is the answer in radians or degrees ?

@PlatinumNuke 3 года назад

2:17 be like

@MaryJane-bo6lj 7 лет назад

Thanks for the help, nearly got confused by mag of u, looks a little like w, other than that great vid

@brianmclogan 7 лет назад

happy t help you out!

@wexer82 7 лет назад

Thank you!!

@brianmclogan 7 лет назад

you are very welcome!

@raghadhajar3759 6 лет назад

thank you so much!

@brianmclogan 6 лет назад

you are very welcome!

@viveksinghviveksingh2234 6 лет назад

Thankyou sir

@brianmclogan 6 лет назад

you are very welcome!

@ash5033938337 3 года назад

Thank you Johnny Sins

@urielgarcia9701 3 года назад

My TI84 cant do the cos^-1(27/5sq34) !!! Any suggestions on what to do to the calculator? Also, can someone help me with this problem? u = and ?? I keep getting -78/50 BUT my calculator can not do cos^-1 (-78/50)

@suyogmathwale4224 7 лет назад

No problem.