What is the Roster Method? (Roster Form) | Set Theory, Writing Sets, Expressing Sets
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- เผยแพร่เมื่อ 20 ก.ย. 2024
- The roster method is one of several set notations you can use to write a set. It is perhaps the easiest understand, but is only useful for writing out sets when they are finite and small in size, or if they are dictated by an easy to describe pattern (that is finite or infinite). If you are asked to list the elements of the set for any particular set, that is using the roster method. The roster form of a set is simply listing the elements of the set between brackets. Ellipsis are permitted to indicate an ongoing pattern. I hope that after this lesson you can write out a set using the roster method.
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I hope you find this video helpful, and be sure to ask any questions down in the comments!
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i accidently wrote rooster ugh but THANK YOU THIS HELPED ALOT
THANKS SIR IT HELPS ME A LOT IN MY ONLINE CLASS
Glad it helped! Thanks for watching!
This help me with my quiz thank sir
Thanks sir it helps me in my homework
Glad to hear it, thanks for watching!
Thx bro this help me a lot It didn't get me perfect at math but I passed now IM grade 11
So glad it helped and thanks for watching!
Thank you so much sir. My doubt is cleared by this video. Thanks again
thankk u so muchh because i dont understand our topics about sets because im still grade 7
You're very welcome! Thanks for watching and that's great you're learning set theory in Grade 7, I didn't learn it until college! Let me know if you ever have any questions or lesson requests!
I hope you'v done a video of the set builder notation because I really need to learn that .
This is awesome very self explanatory
Thanks for watching!
This helps me in my grade 7 math thanks
Glad to hear it!
Thank you so much sir as a notredamians I have learned a lot
Awesome! Thanks for watching!
Thank you for this video it helps me to do my homework 😊😊😊
So glad it helped! Thanks for watching and let me know if you ever have any questions!
Thanks sir now i gets
Thanks you so much it helps in my online class
So glad it helped! Thanks a lot for watching!
Thank you!
My pleasure!
Thanks for the help.
if set a is the set of all given metal elements and set b is the set of all the given non-metal elements find the following by listing in a roaster method
a. A=
b. AUB=
c.B-A=
Thank you sir
glad to help, thanks for watching!
Im helping my 7th grade bestie as a junior 😀
Question...Roster method and set builder notation set M si the set of month having 31 days
Thanks for watching and your question is practically describing the set in set builder notation. Say the set is S. Then S = { x is a month | x has 31 days }. On the left, we describe where our elements come from - in this case the elements are months. On the right we describe additional conditions that our elements must fulfill. So S is the set of months which fit the condition of having 31 days. Identify those months and write them out in a set, that would be roster notation.
Thank you sir this helped me alot
Glad to help, thanks for watching!
Awesome Video
It helps alot
Let's get this video slot of comments and like
:)
Thanks a lot! I am glad it helped.
can you do an example using an english sentence?
for example, "Let X be the set of all distinct letts in the phrase "I have school today". Determine set X using the roster method."
Hi sir, uhm I wanted to ask, can you repeat a letter if a certain word needs to have a roster method?
tysm sir
My pleasure, thank you for watching!
Thank you a lot
What is roster method of contribution ? And why?
THANKS FOR THE HELP:)
My pleasure, thanks for watching!
🙋♂ hello there sir i ask i dont get the last set
Finally got my 1st perfect score in math thanks to you UwU
Great work, and it's all you! You did the studying and you earned the score!
i think zero is an even number , is there different opinions about that?
Actually in mathematics, an even number is a number that can hold the form x = 2m where x is the number in question and m is any other number, therefore 0 is an even number. The reason 0 wasn't included in his first set was because he specified "positive" numbers, and zero is neither positive nor negative.
@@boydfireaxe3717 thank you for your reply , it's clear now
If you were asking about that first set I wrote out, then yes, as Boyd said I specified we were listing out the "positive even numbers", thus excluding 0 because positive numbers are numbers greater than 0. As far as I know, there are not differing opinions on the evenness of 0, though I have heard some stories of some minor quarrels over the matter. Thanks Boyd for the explanation and thank you both for watching!
@@WrathofMath thank you for your reply sir , i think i just missed the part of "positive even numbers" , so i jumped to the conclusion of that you don't consider 0 an even number , especially after i heard that some Mathematics teachers don't consider 0 to be an even number and also some of them don't consider that there are negative even numbers .
name 3river that flow through India to nebhour countries mention the river and countries into in which flow represent the above in restore set method and set builder method. Please help me
Thanks for the video but what if the set is Letters not numbers .
Sorry for the grammar english is not my native language.
it help me sir can you do like letters too
Sir what if you use roster merhod but with heterogenous and homogenous
Question write the following in Rooster method....F= (x:x-5 =y, x belongs to N and x is less than 6) please can u give the solution?
Thanks for watching and you accidentally typed "Rooster method" instead of "roster method", I just want to mention I found that typo very funny so thank you for that! I'm not sure how to answer your question because I don't know what "y" is. We know that x is a natural number and is less than 6, thus x could be 1, 2, 3, 4, and 5. Then, we want our set to have all of those x values such that x - 5 = y (as in, the x values that are 5 greater than y), but we do not know what y is. For example, if y = -2, then F = { 3 } because 3 is the only natural number less than 6 that is 5 greater than -2.
this is awsome
Thank you!
Thank i use it in my class
Glad it helped! Thanks for watching and let me know if you ever have any questions!
sir what to do with letters
Thanks!
My pleasure, thank you for watching!
What is roster method 2 and 15
What called {2,3,5,7} ??
Nice outro dude
Thank you! Let me know if you ever have any video requests!
How about answer on this V={c,d}
Thanks dude. Now I understand how to make a roster method
You're welcome, and thanks for watching! Let me know if you ever have any video requests!
@@WrathofMath I request if you can make a video about conversion of units. And also thanks fo the heart
Of course! Are there any units in particular you'd like to see? Or a category of units like length, mass, or weight?
What is answer can i know?
Please make a video on functions, domain and range.😟
Thanks for watching and for the request! What class are you in? That would help me know in what context you want functions, domain, and range introduced.
@@WrathofMath I am in class 9.Thanks for your response☺
Sir can you answer this?🥺
Define the following sets properly using the required method (Roster Method or Set Builder Notation):
ROSTER METHOD:
1. The first 5 positive even numbers.
2. all planets in the solar system
3. All colleges in DMMMSU-MLUC
SET BUILDER NOTATION:
1. X is all elements of X such that X is the set of first 10 whole numbers
2. y is all elements of y such that y is the set of perfect square numbers between 1-100.
Can you check if its wrong? If wrong can you answer it sir?🥺
Thanks Man it really helped me
Glad to hear it, thanks for watching and let me know if you ever have any video requests!
how do i write "counting numbers less than 1" in roster method?
Thanks for watching! Remember that the roster method is simply writing the elements of a set out in between brackets. For counting numbers less than 1, many people may say there are no such numbers. We often (this group includes me) refer to 1, 2, 3, 4, ... as the counting numbers. So there are no counting numbers less than 1 and the set you describe would be { }, the empty set.
However, it is occasionally appropriate to define the counting numbers as 0, 1, 2, 3, ... in which case the set you describe would be { 0 }. Does that help?
@@WrathofMath it helps very much, thank you!
Thank you how about it's 30?
Thanks for watching and I am not sure I understand your question. Could you elaborate?
2020 school nice
Thanks for watching!
Hi
Thank.. B I G thank
B I G welcome
1 is a prime number.
Why do you think so?
@@WrathofMath I know it has been debated and by definition it probably isn't but it was taught to me as a prime number. Old habits die hard.
You're right that by definition it is not prime, though a long time ago it was defined as a prime. It seems natural to think of it as prime, since it has only one factor, but mathematicians found that primes were a more useful group of numbers without one, so out it went. The Fundamental Theorem of Arithmetic is the most classic example, I think, of how a theorem regarding prime numbers breaks when one is included as a prime. Every integer greater than 1 either is prime, or has a unique prime factorization. If 1 was a prime number, this powerful theorem would go out the window because prime factorizations wouldn't be unique since you could multiply by 1 as many times as you please, technically changing the factorization but not changing the product. It's interesting that you were taught it is a prime number; do you remember any of the reasoning given to support that assertion?
No I don't remember the reasoning. Probably conventional thinking at the time - over 20 years ago.
T^T, this is killing me T^T
Kuu
.
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I still don't get this shit
Thanks for watching and I am sorry it didn't help! Do you have any questions I can help answer?
Oh shit I got 0/26 in my online class
You didn’t even explain how you got the prime numbers👎🏽👎🏽👎🏽
Wow this is a grape message, WE WILL HAVE NO CARROT! 🍇🥕