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Introduction to Relations
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- čas přidán 11. 04. 2021
- Discrete Mathematics: Introduction to Relations
Topics discussed:
1) The definition of Relations.
2) The notation for Relations.
3) The example of Relations between two sets.
4) Relation from a set to itself.
5) Number of relations on a set with n elements.
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Music:
Axol x Alex Skrindo - You [NCS Release]
#DiscreteMathematicsByNeso #DiscreteMaths #Relations
00:58 Binary relation is a subset of the Cartesian product of two sets
01:56 The relation R is defined as the set of ordered pairs where the elements are equal to each other.
02:54 Relation R is created with ordered pairs where the first element is equal to the second element.
03:52 Relation R represents a mapping from a set A to itself.
04:50 The relation R consists of ordered pairs where the first element divides the second element.
05:48 The number of relations on a set with n elements can be found by listing down all the subsets of A x A.
06:46 The number of relations on a set A with n elements is equal to 2 to the power n square.
07:39 The number of relations on a set A with n elements is 2 to the power n square.
Sir, please Complete Data Structures 🙏 I have started studying from the playlist and its important from my semester point of view
@Rahul Yadav Speak the language on what the speaker speaks. Congrats! You have learned one common sense.
@@booky6149 dont try to be oversmart by speaking english rather than own language
he clearly comment on guy( which is indian ) not on speaker so theres nothing point to speak speakers language !!
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the audacity to think you've said something that is common sense, smh @@booky6149
Can u pl explain the purpose of math in this world cuz we don't need these super hard lessons In life ( THE WORLD IS STUPID AS A GOAT)
For someone like you
Programmers do
It's matrix (to keep distracting you from making money)
@@DanielDaniel-ce1vgspeak for yourself bro 🥲
Phones, lights, electricity, cars, any transport, network everything needs this mathematics. Just because you are bad at the subject doesn't make it irrelevant to the world. With your primate-like comment you are being irrelevant to others.
If I am not mistaken, in my university we defined a relation specifically as a non-empty subset of AxB. I wonder why this is? I cannot find this definition elsewhere.
Yep it is correct
Sir could u plz explain about the Newtown- Raphson method 🙏... There is an exam on this topic
Tnk you i was confused and now im more confused
It would be good if you drop link of playlist(discerete mathematics) too
❣️ Thank you for discrete too
Discrete Math: goo.gl/7VUE7z
Thanks I was confused and now I understand
Wow understood nothing, thanks 😊
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😂
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Ahaaha :”D 💔
Same here 😂
Let A={1,2,3,4} and let R be the releation on A defined by xRy if and onlyif " x divides y" written x/y.
1) write down R as a set of ordered pairs.
2) draw digraph of R.
3) determine the indegree and outdegree vertices of digraph. Solve this problem please send me answer
You are such an excellent teacher, keep up the good work!
Thank you Very much Sir
Your Videos are very helpful
Great explanation Sir
Very good explanation sir😊
Thank you
To be honest the last part really wasn't so easy to understand, but I mixed it with a bit of Google and I'm good to go now.
Thanks for Easy explaination of this topic
Thank you very much sir it's very clear🎉
Excellent
thank you so much
very impressive
It's hard for me to understand 😭
If there is no condition in relation in this situation what we do?
Why is (4,2) not in where R is relation where a divides b?
the first element divides the second element, therefore 4 would not divide 2
ie. - (3,6) six can be divided by 3
@@Gemini_7531 thanks......i didn't get it in first look.Understood later.
4 do not completely divides 2
Who the rass knows skunt
It is like 2 divided by 4....
Not 4 divided by 2
Next video on function and it’s types please 🙏
Good job
Thank you very much sir
Thank you so much sir.
Very well explained sir👍
The last part is killing us 😂
Amazing bro🙈🙈🙈🙈
Excellent.
Sir why the number of Relations on a set A with n elements P[(A×A)] is 2 to the power of n^2 not 2^n
these are not relations these are number of elements
Tqvm sir🙏🙏🙏
I think this divisibility needs to be clearly defined. When you say "a divides b", do you mean "b can be divided by a, evenly?"
Technically a divides b means "b divided by a(without a remainder) " which is why we only have (3,3) and (3,6) for when a=3, because 3 can only divide 3 and 6 without remainder
Dude thank u man
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You are the Saad guru of maths don't we think so yes?
Again very confused in Last
very nice
Didn't understand anything
Great
Tq u sir
❤ u sir
Wow you’re very good sir 👏👏
A and B be any non empty sets ah?
Damn Moco!
Hi
❤❤❤
Thank you very much i understood nothing ☺️❤
3 gante se exam aur abhi padhna start kiya hu (year back ka exam h)😭
4 November !!!
Wow
The whole set thing confuses me, it’s silly and easy but never understandable. How? Don’t ask me
ap ki voice sharum ki sketch book jessi he
Anda boleh memilih untuk salah satu daripada hadiah di atas
111 viewer
😢 nothing's 😅
I Didn't understand thing 😢😢😢
Nothing
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poor sequence
Stop saying right after every sentence...
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Nothing understanding
P
Dhhdid
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P