This legend right here has been saving my life since 11th grade, and now I am going into my third year of aerospace engineering and still still following through his videos. Sometimes I wish more of my tuition went to Organic Chemistry Tutor than my professors.
Dude, you continue to be my private tutor in nearly all my courses! I can't thank you enough! Taking discreet math and so thankful for your videos tonight. Seriously, I've been watching your videos for 2 years from Math 1080 through the Calculus series and now discreet. Keep it up!
"0 factorial does not equal 0, 0 factorial equals 1...if you're wondering why.... that's just the way it is. I don't have an answer for you." 10:52 Savage LOL
The reason why 0! Equals 1 is because when you do 0!= 1!/1! (One factorial over one factorial) it just cancels out to 1. It’s the same if you were to do 2!=3!/3!. When you expand the equation, You would cancel out the 3 on the bottom with the three on the top and be left with 2 times 1 which, of course, is 2!
@@prncess1848 u explained it right except that " 2!=3!/3! " should not have factorial in the denominator, thus it would look like " 2!=3!/3 " standard formula would be n! = (n+1)! / (n+1)
I have to really give a shout out to you. There is literally no one else that has your type of extensive videos on pre calc and other subjects. Of course there are better channels for certain subjects but you rival Khan Academy and other video making giants with great content. Thanks!
I have been watching your videos for the last 2 weeks. Today I took my mathematics exam and passed with 182. I can not Thank you enough. I couldn't have done it without your helpful videos. Thank you!!!!
I love how he explains the difference between permutation and combination. It took a me a couple example to finally grasp the advantage of using the formula provided. Not only it made bigger equations to solve but instead of drawing them out which could take longer. The recognition of the two different problems is also an important factor because you don't want to end up using the wrong formula Jamie Toloa
That's my issue. I understand everything and how to do it. But I don't understand how to know which one to use and to recognize the two types of problem
I have my math test tomorrow and I accidentally fell asleep in the class where my teacher was explaining this and omg this helped so much thank you!!!!! You’ve saved my life for chemistry too! You’re awesome!!
iruka sensei couldn't teach me this even with a whole week on just this subject, it was a drag. you taught me this in 10 minutes. you are now my new sensei, thank you
This video was posted in 2017... it is now 2020, and I keep coming back to this amazing channel for help with chemistry and now statistics. You are such a wonderful and knowledgeable guy! Thank you for sharing your knowledge and helping thousands of people!!!
i've been struggling really badly in CIE additional mathematics for the past few months, mainly because i wasn't getting the hang of a few chapters, this one included. my ex math tutor introduced this chapter to me quite a long time ago, and today is the day i REALLY understood the concept, which is astonishing. i've always hated this chapter, because it seemed so confusing and incomprehensible. i tried reading the text book, that has even worse explanations, i went to my older sister, still didn't understand; and today i finally decided to go and check on the internet. i still wasn't getting it from trying a few channels and then i bumped into this guy. and im SO thankful, cause i cant believe i understood a concept that i've been struggling to grasp for MONTHS in a matter of 17 freaking minutes. dear organic chemistry tutor, if you're reading this, i want you to know that you're a hero. you have no idea how much of an immense help you were to me today, and to millions others. not all heroes wear capes, sometimes they run a youtube channel to help others out. keep up this amazing work!!
its kinda hard, because hes just saying the formula, but it would have been nice if he explained why it is that way and how he got there its better teaching
okay so why is 0! = 1? 4! = 4 x 3 x 2 x 1 = 24 3! = 3 x 2 x 1 = 6. We divide 4 from 4!. 2! = 2 x 1 = 2. We divided 3 from 3!. 1! = 1, dividing 2 from 2! 0!???, divide 1 from 1!, its still one
I just want to say THANK YOU , I been watching you since my algebra class and now I'm in statistics and I have to say the way you explain things, they are so more understanding and easier than the way the professors teach and I just have to say THANK YOU FROM THE BOTTOM OF MY HEART.
Honestly man, you saved me. I tried to understand this topic, but never could visualise the difference between permutations and combinations, now I got the difference thanks you to. Thank you so much!
This is the first explanation of permutations and combinations I've seen, that actually explains the difference between both!!! Thanks alot. this is a masterpiece
You are such a good teacher! I’ve searched so many videos and so many skip steps or just assume you know what the academic vocabulary or abbreviations mean. It’s so frustrating. This video is such a breath of fresh air!
You're saving my life in this Statistics class, thank you so so much for making these videos breaking down the steps and trying them out over and over. My brain needs this kind of teaching. Thank you!!!!!
Hi! I've been watching your videos since 2015 and I really have to thank you for getting me through Highschool. Just a year more, and I'll be a freshman in college. Time flies so fast! I also have to get back here and thank you when I'll be a doctor someday. I don't know if you'll be able to read this, but I hope you get the best of happiness and luck in life.
I have been finding relevant videos to whatever I may be doing - from the beginning of middle school up until present day, being in the middle of college. You are amazing and continue to blow my mind. Thank you.
I watched a few of your videos and because you have helped me SO DAMN MUCH I definitely feel it's only fair to say THANK YOU and keep it up. I will forever be grateful, and will continue to turn to you for help.
You are the real MVP. This just made my day having been struggling with the topic. U made it soo simple. I quickly had to share the video with my classmates.
I may be late to the party here but i seriously want to express my appreciation. It is insane to me how the exact same topic can seem either incredibly intimidating and hard or fairly simple depending on the explanation/person who explains. This is by far the best video on this topic. You sir saved my day.
I haven't been in school in over 20 years! Had to help my high schooler w/ her homework, this video was SUPER simple and helped me greatly!! Thank you!!!
Okay, I just used this channel to learn my entire syllabus in one weekend... My teacher couldn't finish the syllabus in one year (the little he did teach no one grasps a thing so)... Thank you very much for all your hard work and time! You are the best!!!
I switched from incognito to regular window just to give it a thumbs up. I studied this topic around 14-15 years ago. I didn’t understand any of it other than memorizing and writing in the exam papers. Due to CWC 2023, I wanted to know how 10 teams playing each other once will have 45 matches in total. I don't want to blame my teachers. They tried their best. Either I was not paying attention or they didn't know that we didn't understand at that time. But kudos to you. Now it seems easy to understand.
Thanks for the help. I was studying for a calculus exam and I haven't studied the content for a month up to the test. You're literally saving me on the day before the test.
If you want some more practice, you might want to check out my latest upload, where I solve such exercises step-by-step: ruclips.net/video/siSc7VEfG3c/видео.html :)
This helps! Thank you. I'm struggling in Probability at my university, and I thought the "P" in nPr meant Probability, not Permutation. That explains a lot.
10:51 If there's anyone wondering, I think I figured out why 0! is equal to 1 while watching the video. Basically, if n is like the menu of things you're choosing, and r is the amount of things you can choose from that menu. We can see in the question that n is 5, r is also 5, meaning you have to pick everything out of the menu and not leave anything out. Therefore, there's nothing to cancel out at the bottom to account for anything you can't pick. And having a look at the numbers that fill the spaces at the top left of the screen, I can understand it's the same as just dividing the full factorial by 1. (Please feel free to ask me about any part of my explanation if it was still confusing for you.)
You are literally saving me academically ...........I wish I could meet you in person and give you my tuition fee because I am completely grateful for your tutorials
I can not thank you enough!!! I had a problem asking how many different arrangements of the letters in the word TENNESSEE are there. I was a wreck until I found you!!!! THANK YOU!!!
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
Precalculus Video Lessons: www.video-tutor.net/precalculus.html
But us we did permutations with and without repetitions
Why am i only seeing without repetitions
Deeply explain the concept and also simple and easy to understand
Dear Teacher, I need help with a question. Can I ask you? Please.
17:40
This legend right here has been saving my life since 11th grade, and now I am going into my third year of aerospace engineering and still still following through his videos. Sometimes I wish more of my tuition went to Organic Chemistry Tutor than my professors.
you can donate him
I'm in grade 9 when I learn this in school, this is not fair
This is not permutation, but variation vs combination. He did not say anything about permutations!
@@hookey24 🤦🧐
@@hookey24 you *may* just *may* wanna look at the title again... 😶
Thanks! Your channel has been invaluable in helping my daughter with her homework!
Yes!!!
$999,999.99 Love your content
@@AllergicToMango ?
@@AllergicToMango😂😂
😭😭😭@@AllergicToMango
This man just taught me permutations and combinations in 7 minutes when my teacher couldn't do it for an hour.
I would like this comment, but I see it is at 69. Nice.
@@joshr.5199 it's now 169
@@iyah1050 it's now 174...but i added a like.
@@weyden7590 176
@@karthikeyang2037 its 177 now lmaooo let's stop😂
As a 40yo+ self employed quantitative analyst I always find myself here to stay sharp. Great work. Best channel on the tube
I myself also come to videos like these just to repeat basics. In the end basics can't be mastered too well
This is not permutation, but variation vs combination. He did not say anything about permutations!
Hey, Can you please tell me what topics should i study to become a quant?
Dude, you continue to be my private tutor in nearly all my courses! I can't thank you enough! Taking discreet math and so thankful for your videos tonight. Seriously, I've been watching your videos for 2 years from Math 1080 through the Calculus series and now discreet. Keep it up!
2 hours before a test and i always find myself here
Fellow habesha 😄
Same
Me right now lol
Day before 🤣🤣
@@lilactiktok zero o'clock
"0 factorial does not equal 0, 0 factorial equals 1...if you're wondering why.... that's just the way it is. I don't have an answer for you." 10:52 Savage LOL
That was awesome LOL
The reason why 0! Equals 1 is because when you do 0!= 1!/1! (One factorial over one factorial) it just cancels out to 1. It’s the same if you were to do 2!=3!/3!. When you expand the equation, You would cancel out the 3 on the bottom with the three on the top and be left with 2 times 1 which, of course, is 2!
@@prncess1848 u explained it right except that " 2!=3!/3! " should not have factorial in the denominator, thus it would look like " 2!=3!/3 "
standard formula would be
n! = (n+1)! / (n+1)
Just think, how many ways are there to arrange 0 objects, there's one way, just like that...
@@neeraj8278 exactly lol.
“If you want to know why? That’s just the way it is.. I don’t have an answer for you” best part of the video by far
I am in Africa, and MISSISSIPPI is a common question. I appreciate the dedication you put into this work!
Very true 🥲
This person is the reason I am passing my classes! Thank you for your easy-to-follow videos!
I haven't been attending much classes throughout the years, this guy keep saving me for my exams. Much thanks
I have to really give a shout out to you. There is literally no one else that has your type of extensive videos on pre calc and other subjects. Of course there are better channels for certain subjects but you rival Khan Academy and other video making giants with great content. Thanks!
Which channels I need a video for some topics he doesn't have e.g damped oscillation
Khan Academy?
Khan Academy is dusted by this guy. Really clear in explanation, no um, ah, um, um, f, f, etc.
@@minhtuando6775 oh ya lol
Yep, it's not that difficult just become a Patreon and buy his merchandise.
A wonderful voice and elegant way of explaining. I just like your voice and style of teaching. So nice.
hafeez ahmed he sounded extra shmexy on this one HAHAHA soorrrryyy jk lmao
He's a singer
this guy is very good
You are 100% right, because I feel the same way best teaching with best voiceeeeee 👍
Me tooo
I have been watching your videos for the last 2 weeks. Today I took my mathematics exam and passed with 182. I can not Thank you enough. I couldn't have done it without your helpful videos.
Thank you!!!!
7 years ago and still helpful. Thanks a lot!❤
Exam in 7 hours and I understand nothing at school...
YOUR THE BEST TEACHER THAT I EVER KNOW !!! THANK YOU FOR MAKING MY LIFE EASIER
Same hahahaha
howd you do
That's why I am watching. Mine is after 2 hours.
I love how he explains the difference between permutation and combination. It took a me a couple example to finally grasp the advantage of using the formula provided. Not only it made bigger equations to solve but instead of drawing them out which could take longer. The recognition of the two different problems is also an important factor because you don't want to end up using the wrong formula
Jamie Toloa
Same ! I didn't know the difference
That's my issue. I understand everything and how to do it. But I don't understand how to know which one to use and to recognize the two types of problem
Same here
I’m now okay
I have my math test tomorrow and I accidentally fell asleep in the class where my teacher was explaining this and omg this helped so much thank you!!!!! You’ve saved my life for chemistry too! You’re awesome!!
iruka sensei couldn't teach me this even with a whole week on just this subject, it was a drag. you taught me this in 10 minutes. you are now my new sensei, thank you
after seeing this comment, my faith in humanity has been restored once again
@@Zion122 my faith in humanity was lost reading it
🎉😂🎉😂🎉😂🎉f{o\o\l
Without you I probably would’ve failed my physics exam, so thank you for making these extremely helpful videos
This man kno everything. It always his voice explaining any math problem. Im tryna nominate this man for a nobel piece prize.
Your wording hurts my brain.
This video was posted in 2017... it is now 2020, and I keep coming back to this amazing channel for help with chemistry and now statistics. You are such a wonderful and knowledgeable guy! Thank you for sharing your knowledge and helping thousands of people!!!
Now it's 2022...... Still wonderful
@@dhimandas5673 2023 still goated. Its just timeless!!!
@@marufurrahman250 Just entering 2024 and can attest that this vid is timeless.
@@stellak7134 2025 still timeless!
arrange=permutations
4:33 - calculating permutations
6:00 - calculating combinations
7:36 - sample questions + working
scammer
@@rianshinwarie6703 :(
@@miaazlan2412 lol
i've been struggling really badly in CIE additional mathematics for the past few months, mainly because i wasn't getting the hang of a few chapters, this one included. my ex math tutor introduced this chapter to me quite a long time ago, and today is the day i REALLY understood the concept, which is astonishing. i've always hated this chapter, because it seemed so confusing and incomprehensible. i tried reading the text book, that has even worse explanations, i went to my older sister, still didn't understand; and today i finally decided to go and check on the internet. i still wasn't getting it from trying a few channels and then i bumped into this guy. and im SO thankful, cause i cant believe i understood a concept that i've been struggling to grasp for MONTHS in a matter of 17 freaking minutes. dear organic chemistry tutor, if you're reading this, i want you to know that you're a hero. you have no idea how much of an immense help you were to me today, and to millions others. not all heroes wear capes, sometimes they run a youtube channel to help others out. keep up this amazing work!!
This man is the best teacher I have seen so far. thank you, God bless you!
This man needs to be recognized by youtube🔥
Damn right!!
yeah, he is the best for useless school
Not all capes wear heroes...
???
Yep
This is why I don't cram before my exams
hahahha
MindCap lol
Dude you're the organic Chemistry tutor but you have so much content. You are truly a special human being
14:02 The fact you changed your mind and came back deserves some appreciation 😅. Thank you. Great explanation. It's 6 years old! ❤❤❤
this guy never lets me down whever im stuck at any subject he is here to save the day
It's funny when he says, "If you're wondering why...that's just the way it is."😂😂😂
it eezz what it eezz
its kinda hard, because hes just saying the formula, but it would have been nice if he explained why it is that way and how he got there
its better teaching
its because you can arrange the set { 0 } in 1 way
okay so why is 0! = 1?
4! = 4 x 3 x 2 x 1 = 24
3! = 3 x 2 x 1 = 6. We divide 4 from 4!.
2! = 2 x 1 = 2. We divided 3 from 3!.
1! = 1, dividing 2 from 2!
0!???, divide 1 from 1!, its still one
it's means don't ask anymore questions🤣
You reach everything with the most simple words
I love you and I believe everyone does
You are the only hope when I don't u understand a topic
wow!!!! that's exactly how i feel... through out the semester I just believe and know I will understand more from this page!
Tutor(teacher) speaks with himself
I go back home and watch your videos so I pretend that I understand his "teaching" style.
You are a life saver
I just want to say THANK YOU , I been watching you since my algebra class and now I'm in statistics and I have to say the way you explain things, they are so more understanding and easier than the way the professors teach and I just have to say THANK YOU FROM THE BOTTOM OF MY HEART.
Fudge he taught it to me better than anyone could in the course of 2 weeks,he deserves the sub
Honestly man, you saved me. I tried to understand this topic, but never could visualise the difference between permutations and combinations, now I got the difference thanks you to. Thank you so much!
This is the first explanation of permutations and combinations I've seen, that actually explains the difference between both!!!
Thanks alot. this is a masterpiece
Same here
was with you for chem last semester...now i'm with you for stats...GOAT
You are such a good teacher! I’ve searched so many videos and so many skip steps or just assume you know what the academic vocabulary or abbreviations mean. It’s so frustrating. This video is such a breath of fresh air!
Dude...I'm 47 years old and have never grasped math the way I did watching your videos! Thank YOU!!
😁1 out of 5 University students recognizes You as the Soul Professor🎓.. keep sharing this knowledge 💪🏽
You're saving my life in this Statistics class, thank you so so much for making these videos breaking down the steps and trying them out over and over. My brain needs this kind of teaching. Thank you!!!!!
Hi! I've been watching your videos since 2015 and I really have to thank you for getting me through Highschool. Just a year more, and I'll be a freshman in college. Time flies so fast! I also have to get back here and thank you when I'll be a doctor someday. I don't know if you'll be able to read this, but I hope you get the best of happiness and luck in life.
I have been finding relevant videos to whatever I may be doing - from the beginning of middle school up until present day, being in the middle of college. You are amazing and continue to blow my mind. Thank you.
Who's here because you have a test tomorrow
Lol tomorrow??? 2hours away
😅😅
Me😂
Me
Today.....
I watched a few of your videos and because you have helped me SO DAMN MUCH I definitely feel it's only fair to say THANK YOU and keep it up. I will forever be grateful, and will continue to turn to you for help.
You have such a gift with teaching! Thank you for being willing to share it with the world via youtube!
the way your brain works is incredible. you have gotten me through years of math and science
Not only did I understand the topic, but also I had seen new techniques. OMG thanks !!!!!! best teacher ever!
You are the real MVP. This just made my day having been struggling with the topic. U made it soo simple. I quickly had to share the video with my classmates.
Man, you are such a great teacher. I really appreciate your efforts.
Watching this 1 hour before my final exam
I may be late to the party here but i seriously want to express my appreciation. It is insane to me how the exact same topic can seem either incredibly intimidating and hard or fairly simple depending on the explanation/person who explains. This is by far the best video on this topic. You sir saved my day.
I haven't been in school in over 20 years! Had to help my high schooler w/ her homework, this video was SUPER simple and helped me greatly!! Thank you!!!
Okay, I just used this channel to learn my entire syllabus in one weekend... My teacher couldn't finish the syllabus in one year (the little he did teach no one grasps a thing so)...
Thank you very much for all your hard work and time! You are the best!!!
"wanna know why? I'm not telling you." lmao
Studying for the GMAT and needed a massive refresher on permutations and combinations. This has been insanely helpful
so did you pass the gmat? if yes any tips?
The only thing I would change about this channel is the volume. Like many of you, i'll probably owe my degree to this guy.
I remember my calculus professor proved to us why 0! = 1 and it was mind blowing. Loved that professor.
TY BRO
I love how you explain these mathematical tricks in between, which are totally off-topic but so helpful. Thank you!
This guy is the word GENIUS😂😂😂He just taught me permutations and Combinations in just 2mins
YOU explained in 15mins what i couldn't comprehend in a 3hr class ! Thank you ! keep being amazing !
I always find myself coming back to this channel at different times of my academic journey! Truly a gem of a resource and always a lifesaver.
You're an AWESOME teacher!! Thank you SO MUCH! I'm studying for the GRE and your videos are immensely helpful! Thanks again!!
Where did he get 4 and 2
i subed to u
Awesome Lesson!!! I was able to grasp the concept waaaayyy better from your way of explaining. Just great. Thank you Thank you Thank you!!!
u are a really great teacher , u made it so easy to understand, thanks for this
I switched from incognito to regular window just to give it a thumbs up.
I studied this topic around 14-15 years ago. I didn’t understand any of it other than memorizing and writing in the exam papers.
Due to CWC 2023, I wanted to know how 10 teams playing each other once will have 45 matches in total.
I don't want to blame my teachers. They tried their best. Either I was not paying attention or they didn't know that we didn't understand at that time.
But kudos to you. Now it seems easy to understand.
What a god , this is ten times better than reading text books, cheers mate!
"If you're wondering why , that's just the way it is. I don't have an answer for you" 😂😂😂
When he said he changed his mind not to end this video I just had to laugh I mean sir, you're not just a hero but you're funny too I mean
You are the key to our problem keep it bro. God bless u
Thanks for the help. I was studying for a calculus exam and I haven't studied the content for a month up to the test. You're literally saving me on the day before the test.
hey
THANK YOU I JUST STUDIED A WHOLE MONTH OF CLASSES WITHIN TWO HOURS FOR MY EXAM 😭😭😭
Y'all learn permutation and combination the whole month? Lol
@@clarenskybenoit8755 bruh what
11:00 its because there is only 1 way of 0 things... 0 things
his voice is so soothing
I love this man so much, he has taught me more things in 17 min than a 30 day course about geometry
And I've been stressing over this since the past 4 hours 😭😭 thank you math lords
Incredible video, thank you so much!
photo everyday!!!
Legend
helloooo omj your the one with pics hellooo
If you want some more practice, you might want to check out my latest upload, where I solve such exercises step-by-step:
ruclips.net/video/siSc7VEfG3c/видео.html
:)
This helps! Thank you. I'm struggling in Probability at my university, and I thought the "P" in nPr meant Probability, not Permutation. That explains a lot.
I can never fully understand a math concept unless I watch one of your videos
7 years later and this video is still saving lives. Thank you man!
GREAT video!! Thank you!! Still a huge help 6 years later. Now THAT'S a legacy.
7:34 I literally jumped when thew add popped up because I was not expecting that, I was so focused😂
10:51 If there's anyone wondering, I think I figured out why 0! is equal to 1 while watching the video. Basically, if n is like the menu of things you're choosing, and r is the amount of things you can choose from that menu. We can see in the question that n is 5, r is also 5, meaning you have to pick everything out of the menu and not leave anything out. Therefore, there's nothing to cancel out at the bottom to account for anything you can't pick. And having a look at the numbers that fill the spaces at the top left of the screen, I can understand it's the same as just dividing the full factorial by 1. (Please feel free to ask me about any part of my explanation if it was still confusing for you.)
This makes perfect sense! Thankyou so much!
I'm just happy they gave it outright and didn't ask us to go on a goose chase to find it
thank you so much for this video, you don´t know how much it helped me!
TYSM! WHENEVER WE HAVE NEW LESSON ON MATH I ALWAYS WATCH YOUR VIDEOS!! BECAUSE THEY'RE SO EASY TO UNTERSTAND WHEN YOUR EXPLAINING IT
Thanks alot mann...u saved my life right now...
I just come to his videos to learn new things on my free time and listen to his soothing voice✨😄
5 years later and stil saving lives.
Literally an hour my exams lol
Exams tomorrow lol
Ty
same tbh even tho we're not referencing the same point in history
same
My exam isn't tomorrow but near future
lol its literally tomorrow
we’re just starting this unit. i watched this video to get a head start lol so i can better understand my lesson 😂
This has to be the best math tutor i could find since i learned the topic faster than how i would learn from my own professor. Thanks math tutor
You are literally saving me academically
...........I wish I could meet you in person and give you my tuition fee because I am completely grateful for your tutorials
Paying fees just to come and learn everything on RUclips 😂
He is amazing, I love the way he teaches and explains everything , he makes my topics so simple 😅🧠🧠🧠💪💪
Can we recruit this guy as professor on youtube?
thatd be dope lol
Well he is a professor on RUclips lol
he is already !
I can not thank you enough!!! I had a problem asking how many different arrangements of the letters in the word TENNESSEE are there. I was a wreck until I found you!!!! THANK YOU!!!
Sir, I think you should get an award for how many students you have helped. Thank you for everything 🙏🏼
Who's from 2024 are allowed to like this comment
First in replies
Second in replies 🥈 Friday, August second, 2024
Are U by any chance from Malawi university of science and technology😂😂@@GlowBerryPumpkin
A day before the exam 😅😅
From 2025 not allowed to like it