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PixieDust1
 2 years ago
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PixieDust1
 2 years ago
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PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1I got 0 idea how to solve this

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3You don't have to solve anything. It is is asking which of the below statements are true.

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Or how to even see which statements are true. I got nothin'

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Every set is a subset of itself.  Empty set is a subset of every set.  Other Example: If A={1,2,3} and B={1,2} B is a subset of A because A has all of B's elements. A is not a subset of B because B does not have all the elements A has.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3So let's look at the first statement "W is a subset of Z" Do you think that is true?

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Does Z have all the elements that W has?

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1It looks true to me!! All w are z, but not all z are w

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Yep that statement is true. Integers={...,3,2,1,0,1,2,3,...} W={0,1,2,...} As we see the set of W is a subset of Z because W has the elements 0,1,2,... and these elements are also in Z. Now Z is not a subset of W because W does not have all the elements Z has.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Do you think the real numbers are a subset of the whole numbers?

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1That makes sense!! Thanks! :D Based on that, I think #2 is true All r is w, but all w is not r

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Well the real numbers are definitely not a subset of the whole numbers.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3The real numbers include numbers that aren't in the set of whole numbers like sqrt(5) and pi and so on...

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Now you could say the whole numbers is a subset of the real numbers.

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Oh i forgot! Silly me! I get confused very quickly. That makes sense to me!

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1What does the "e" mean on the next one?

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3I think your e there is suppose to mean an element of, but that isn;'t the traditional symbol for it that you are using.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3dw:1387243116999:dw The symbol should look more like this.

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Yeah, I used the standard keyboard symbol for the regular e. The e you drew is what it was suppose to look like :)

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3So that statement is asking you if you think that element 0 is in the set of integers

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3The integers are {...,3,2,1,0,1,2,3...} Do you think 0 is in that set?

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Yup! Forever and ever and ever and ever and ever ....

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1In both directions :D

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Those dots mean it continues on in both directions.. Good stuff. Okay so that one you say is true.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3So do you know what that other symbol means in the next statement?

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Hmmm... maybe it means like no value?

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1I saw it in the textbook, but they never told us what it meant They just started using it

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3\[\emptyset=\{ \text{ } \}=\text{ empty set } \] This basically means there are no elements contained within the set.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3It is totally empty and no you do not say 0 is element of the empty set. There are no elements in the empty set not even 0.

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1But its apart of every set, right?

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3It is a subset of every set.

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1okay! So then would that make them true?

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Cool! I didn't understand what the line under the c on the next one is

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1387243554944:dw

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Like I'm saying that equal sign means they could be equal. Like they have the same exact elements in both sets.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Is that true? Are these the same sets?

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Oh wait!!! I think they may be!

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3So what is the whole numbers then if it isn't {0,1,2,...}

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1there wouldn't be any

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3The whole numbers are defined for you in your problem

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Isn't 0,1,2 etc whole numbers?

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Yes so back to your question, dw:1387243864499:dw are these the same sets on both sides of that "weird symbol"?

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3that little line just means they can have all the exact same elements (talking about both sets; both sets can be exactly the same when you have symbol)

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1oh! So it's kinda like an equal sign (in a way)? If so, I think this is true

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3Yep It means it can be a subset of that set or subset of that set that is that set (or equal)

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3The last one, can you tell me the answer?

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1For the last one, i think it is false. 2 is not equal to W (a whole number)

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3You are right to say false. But doesn't say "2 is not equal to W" Say "2 is not en element of W" This just means the set W does not include 2 as an element.

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Oh yeah! Because its the element that includes the entire w

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3People sometimes use this notation to say it is not an element of : dw:1387244283183:dw

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3They just put a mark through the sign that means an element of to say that it is not an element of

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Thank you SOOOOO much for helping me out!

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1I really understand this now

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.3No problem. Cool stuff. I'm glad you do. May the force be with you in your future math studies!

PixieDust1
 2 years ago
Best ResponseYou've already chosen the best response.1Thanks! Have an awesome day :D
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