Permutations and Combinations - Permutions.

  Рет қаралды 54,398

tecmath

tecmath

7 жыл бұрын

Permutations are easy to understand...but take time to get to why we work them out the way we do so you can understand them better. This video also looks at how permutations differ from combinations, and well as looking at simple permutations, permutations with limited spaces, permutations with repeats, and permutations in a circle.
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Пікірлер: 25
@bandini22221
@bandini22221 2 жыл бұрын
Thank you. I haven't studied these things for 50 years and have forgotten so much.
@IAmAwesomeSoAreYou
@IAmAwesomeSoAreYou 6 жыл бұрын
Your voice is so soothing ~
@sarahbarton7527
@sarahbarton7527 7 жыл бұрын
It's 2:28 a.m. where I'm from and I just studied this for 3 hours. That's crazy
@TheBrandon164
@TheBrandon164 7 жыл бұрын
I'm Dad 2:55 in my case
@katlin8474
@katlin8474 7 жыл бұрын
OMG dude thank you for this... you earn a sub
@MrLizrd
@MrLizrd 5 жыл бұрын
Amazing, thank you lots
@rlight4378
@rlight4378 5 жыл бұрын
Nice! Thanks your realy take time to explain it. Thanks for the video I would like to see more videos from you! (Even if this was a long time ago)
@adengoher4343
@adengoher4343 3 жыл бұрын
Thank you!
@choOz
@choOz 7 жыл бұрын
Great video, really clear and visual explanation. Bring the one on combinations soon!! And add variations please! I have an exam on monday on this stuff.
@tecmath
@tecmath 7 жыл бұрын
I saw your comment....and got busy. The combinations video is being uploaded. Good luck on your exam.
@choOz
@choOz 7 жыл бұрын
Thanks a lot mate! Ill get right on it.
@salthesadmanshark5645
@salthesadmanshark5645 4 жыл бұрын
Great voice 🎉
@tonybarfridge4369
@tonybarfridge4369 4 жыл бұрын
Do u have any shortcuts for finding part permutations of words with repeated letters? Thanks 😁😊
@prajwol45
@prajwol45 2 жыл бұрын
Thanku so much for ur videos I passed my GED maths with 174 scores
@michelef406
@michelef406 6 жыл бұрын
In how many different ways can i arrange my n number of spices if i have a k number of spaces in my shelf? =D
@pianoexpert123
@pianoexpert123 7 жыл бұрын
BLESS
@vineethreddy.s
@vineethreddy.s 7 жыл бұрын
Nice....
@debidattamishra8677
@debidattamishra8677 5 ай бұрын
why isn't the circle one infinite arrangments since he circle has infinite different points to set the letters at?
@cloudgalaxy9231
@cloudgalaxy9231 2 жыл бұрын
Why do we divide by the number of rotations in the circle? I just don't get it. Why don't we divide it by 4! or 3! because that's the number of extra combinations per arrangement, right? I get that we have the formula, but I don't understand the formula.
@gwsljp
@gwsljp 2 жыл бұрын
I love you
@sourayeaturaye2498
@sourayeaturaye2498 6 жыл бұрын
For the puppy question the answer should be 40, we shouldn't find the factorial for the 3, what if we had the word Tennessee, we will not do the factorial for the n,e and the s.
@oghenemiseoru5362
@oghenemiseoru5362 3 жыл бұрын
In d last example y didn't u do 6!/6 like in d second to d last example
@diegislac5116
@diegislac5116 5 жыл бұрын
So basically people in a row is just the amount of seats factorial
@dyland9157
@dyland9157 7 жыл бұрын
♨️💯🛃
@tdpencil2811
@tdpencil2811 4 жыл бұрын
I think it's flip-flopped, but okay.
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