EVERYTHING about Permutations & Combinations | A Level Math Topical Series (2024)

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🔴 About This Video 🔴
By popular demand, this is a video on everything you need to know about Permutations & Combinations. We'll cover the basics of Permutations and Combinations, how to use the insertion method, as well as finding permutations in a circle. It is currently just the basics, but as we delve into more questions, we would see greater how the concepts here can be applied to those questions.

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[H2] 2017 Paper 2 Solutions:

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[vaibhavmaloo]

This is by far the best permutation video I've watched.

[KeiVC]

ah my nemesis lol

thanks for this haha

[arminsgf]

this was a really helpful video; thank you so much! :)

[asraamir]

Love the lecture ❤ first time understanding online

[sarahatwiine]

thanks so much i would like to get some qns about the topic for practice

[michellesilva]

great video!in 8:23 we also could use the method 10P5 too right?
just to make it sure>

[itsbossin]

I have a question, in (18:14) so basically you multiplied (7!) x (6C2) x (2!) and that would be the answer? Thanks for the great content!!!

[kaienglei]

I would like to ask a question! Hope you could answer me~
4 different red balls and 5 different blue balls are placed in a row in a container with 9 partitions. Find the number of ways of arranging them if
a) the red balls and blue balls are placed alternately
b) no red balls are placed next to each other

[evridden]

Hi for the insertion method is it not possible to insert them at the extreme right and left? Since they will not be standing beside each other. Would it be 8C2 instead of 6C2?

[angelinoz]

I am struggling with one question, can you help: There are 10 seats in a row in a cinema theater. 6 people are shown to this row and two of them must sit together next to each other. In how many different ways can they be seated? According to me it should be 2 seats taken by the couple leaves 8 seats for the 4 people. the first person has 8 options, the second has 7, then 6 and then 5. The other two have 10 and 9. I am confused. Please reply

[agapephele]

Hey, you never talked about if items in a row a being permutated and a pair a placed next to each other how you work around it

[SangitaKumari-pxzv]

Hey ! ! Can you tell me what do you mean by r that you specified

[crewmatewillthrowthesehand]

For identical objects, what if I only
Take
3 out of 6, then how to solve?

[FreyMayBeHere]

I don't understand the circle one

[niharikamanandhar]

are u singaporean ?? istg u sound just like my singaporean friend!

[abdallalotfy]

did not understand a single thing from permutations !

[ValtheMatedor]

your accent makes it impossible to understand the video

[faithelias]

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