Permutations and Combinations 1 (Counting principle)

Permutations and Combinations tell us the number of different arrangements of items or numbers that can occur. In this lesson we look at the counting principle - a fast method of counting the number of various arrangements through multiplication.
In this video we also use combinations and permutation counting principles to answer some of the big questions of life - how many different outfit combinations do you have, how many lotto permutations are there, why do they call the tecmath the Count?
• permutations and combi... To support free math on Patreon (thank you): / tecmath To donate to the tecmath channel: paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: paypal.me/tecmath?locale.x=en_AU
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Пікірлер: 65

  • @raquelesperanzawiegand7772
    @raquelesperanzawiegand77723 жыл бұрын

    Thank you so much for these videos! I, having been homeschooled all my life, did not recieve the privelige of a teacher. I was self-taught, usually spending hours wrestling over hard problems till i found the solution. These videos have saved my time and are concise and easy to understand! Thank you so much!!

  • @vidaashish7420

    @vidaashish7420

    9 ай бұрын

    Same here i do online schooling and computational thinking and subjects like math and calculus are really difficult so yeah, thanks so much fo making this vid. I even figured out how many outfits i could wear too 😊

  • @dannymcphee
    @dannymcphee7 жыл бұрын

    Thank you Mr. Tecmath, today's lesson was really great in simplifying combinations.

  • @ingriddouglas408
    @ingriddouglas4084 жыл бұрын

    Extremely helpful, your explaination is out of this world. Thank you sir.

  • @anasramsey9477
    @anasramsey94777 жыл бұрын

    I really find your channel so inspiring, I wish you were my teacher

  • @neilagrawal6649
    @neilagrawal66497 жыл бұрын

    Very helpful video. Thank you!

  • @wolfius2785
    @wolfius27857 жыл бұрын

    Great video! Im in 7th grade and I love this channel! All of your videos help me a lot!

  • @stygers001
    @stygers0016 жыл бұрын

    Thank you sooo much! this was so helpful!!!

  • @evanparsons123
    @evanparsons1235 жыл бұрын

    some people take pre-calculus, I'm taking pre-counting

  • @aggyz2198

    @aggyz2198

    5 жыл бұрын

    lol

  • @CaraHillVoiceoverArtist
    @CaraHillVoiceoverArtist Жыл бұрын

    Super helpful! Thank you so much! :)

  • @jennuizz9366
    @jennuizz93667 жыл бұрын

    I love you videos, Tecmath, it helps me a lot. Can you please make videos about basic calculus ?

  • @quran.edits68
    @quran.edits683 жыл бұрын

    thanks this helped me a lot in my mocks

  • @bandini22221
    @bandini222212 жыл бұрын

    thank you, bro!

  • @adengoher4343
    @adengoher43433 жыл бұрын

    Thank you!

  • @hastonepy
    @hastonepy7 жыл бұрын

    Hey man, i love your videos. and i have a question: Wich app do you use to write the number with your mouse on the computer ?

  • @jinasarmah6622
    @jinasarmah6622 Жыл бұрын

    Thank you so much sir 🤗😄

  • @ankushbhattacharjee1833
    @ankushbhattacharjee18336 жыл бұрын

    In the examples of shoes pants and shirts it is 6×7×12 is=504.bt very well executed👍👍

  • @luissaberon7017
    @luissaberon70177 жыл бұрын

    6*7*12 is 504

  • @tecmath

    @tecmath

    7 жыл бұрын

    +Bubba Chukk thanks.

  • @moosetisho5286

    @moosetisho5286

    7 жыл бұрын

    Bubba Chukk yup did it in my head and was like hmm what am i doing wrong here and then i figured he was wrong haha

  • @juanandressuarez866

    @juanandressuarez866

    6 жыл бұрын

    hahahaha, friend use calculator is esier for all very güd video, tnaks

  • @aggyz2198

    @aggyz2198

    6 жыл бұрын

    Bubba Chukk nice avatar

  • @ismail0484
    @ismail04846 жыл бұрын

    I love your videos, even when I haven't learnt the topic in school, I still watch 'em and understand when I have never learnt it

  • @ishanmishra874
    @ishanmishra8744 жыл бұрын

    hey i was following your playlist, of probability, and in the 6th video you say in combinations you multiply the numbers to choose from and then divide it by the number of spaces. But here you are only multiplying and not dividing for combinations specifically at the problem at 7:20 secs?

  • @valeriaescobar8112
    @valeriaescobar81127 жыл бұрын

    literally yesterday was my probability test about this

  • @the7thage576
    @the7thage5767 жыл бұрын

    6*7*12=504

  • @dncovjsbeicj
    @dncovjsbeicj7 жыл бұрын

    TecMath!!!! On your sqaure root of ANY number vid, I have a question!! What if you're trying to find the sqaure root of eight? You run into an answer of 2 4/4!! What do you do in this scenario??

  • @tecmath

    @tecmath

    7 жыл бұрын

    +HEATMO24 thanks for the question. The method has limitations....but try it for 800 and adapt your answer. Hope that helps.

  • @dncovjsbeicj

    @dncovjsbeicj

    7 жыл бұрын

    tecmath Thank you so much!! Love your vids and keep up the great content!

  • @milesp123xd7
    @milesp123xd74 жыл бұрын

    Lmao i lost it when you said we aren’t gonna have poo on the license plate

  • @cormacwilkinson8226
    @cormacwilkinson82267 жыл бұрын

    Don't go away ever again please haha

  • @shamarg6
    @shamarg65 жыл бұрын

    that problem you did with " You have 6 lotto numbers how many ways can they get chosen from a number from 1-45" is technically a permutation because you put it in a specific order

  • @jw4082
    @jw40827 жыл бұрын

    Why did I get a notification for this?

  • @thexoxob9448
    @thexoxob94482 жыл бұрын

    4:30 504*

  • @varva001
    @varva0017 жыл бұрын

    those are disposition not combinations... am i right? ages since i've done those...

  • @Bsus4films
    @Bsus4films7 жыл бұрын

    Dude you need to explain tautologies to us. I had an F in those

  • @mikafairystar
    @mikafairystar7 жыл бұрын

    Oh where abouts in Victoria! I'm in Melbourne too.

  • @hermannagra7333

    @hermannagra7333

    7 жыл бұрын

    well yes

  • @tecmath

    @tecmath

    7 жыл бұрын

    +mika Jade mornington peninsula. Thanks for watching!

  • @mikafairystar

    @mikafairystar

    7 жыл бұрын

    Hoppers Crossing!

  • @mikafairystar

    @mikafairystar

    7 жыл бұрын

    Lovely place & residents! love your videos!!

  • @obamium932
    @obamium9327 жыл бұрын

    bro you sound like NoriYaro

  • @lauraduncan2125
    @lauraduncan21255 жыл бұрын

    What is your name Mr Teacher?

  • @haroldodomingo9119
    @haroldodomingo91197 жыл бұрын

    Untitled?

  • @orlandoaldunar4133
    @orlandoaldunar41337 жыл бұрын

    😁

  • @Richie-uy6io
    @Richie-uy6io2 жыл бұрын

    Your Channel would be awesome if it was dark screen. That white is blinding me.

  • @velitarioarielf.4179
    @velitarioarielf.41796 жыл бұрын

    12 18 24 30 36 42 48-504

  • @SilverBreath25
    @SilverBreath257 жыл бұрын

    second

  • @saligee
    @saligee7 жыл бұрын

    504! :-p

  • @urviap8086
    @urviap80866 жыл бұрын

    7*6*12=504...pls dont make these errors...i'm largely dependent on your tricks for several of my math problems...it screws up my system too

  • @SaraOnY0utube
    @SaraOnY0utube2 ай бұрын

    4:31 isn’t it 504?😭

  • @orlandoaldunar4133
    @orlandoaldunar41337 жыл бұрын

    first like

  • @jaimepena6438
    @jaimepena64387 жыл бұрын

    hey frist

  • @davidfrank6666
    @davidfrank66665 жыл бұрын

    the funny the about the menu thing is: some of the food combinations are simply eaten in a different order.

  • @davidfrank6666

    @davidfrank6666

    5 жыл бұрын

    edit: "the funny thing about"...

  • @siragan4369
    @siragan43695 жыл бұрын

    sorry 6x7x12 = 504 not 502

  • @lilchwis4423
    @lilchwis44237 жыл бұрын

    Why is there no name lol

  • @nathanezra1
    @nathanezra17 жыл бұрын

    Untitled...

  • @Drakcloud65
    @Drakcloud657 жыл бұрын

    Ewww he doesn't wear underwear 😁

  • @tecmath

    @tecmath

    7 жыл бұрын

    not quite. Like my socks my undies are the same colour....hence not changing the number of arrangements.

  • @njreigns3263
    @njreigns32636 жыл бұрын

    Yeah its 504 not 502

  • @chamilavitharana5302
    @chamilavitharana5302 Жыл бұрын

    no poo

  • @michaelempeigne3519
    @michaelempeigne35196 жыл бұрын

    6 * 7 * 12 = 504

  • @frederickmulle6340
    @frederickmulle63405 жыл бұрын

    6*7*12 is 504