http://i1099.photobucket.com/albums/...elephant/Z.jpg

Hi guys, why is my answer (7) wrong? Please do explain, thank you very much!

Printable View

- Sep 10th 2011, 11:37 AMFailInMathsSet language and Notation questions
http://i1099.photobucket.com/albums/...elephant/Z.jpg

Hi guys, why is my answer (7) wrong? Please do explain, thank you very much! - Sep 10th 2011, 11:45 AMPlatoRe: Set language and Notation questions
- Sep 10th 2011, 11:46 AManonimnystefyRe: Set language and Notation questions
hi

if you read the first line in the pic you will see that it says:"Your answer for Blank 1 '12' is incorrect" - Sep 10th 2011, 11:49 AMPlatoRe: Set language and Notation questions
- Sep 10th 2011, 11:52 AMFailInMathsRe: Set language and Notation questions
- Sep 10th 2011, 11:53 AMFailInMathsRe: Set language and Notation questions
- Sep 10th 2011, 11:57 AMPlatoRe: Set language and Notation questions
I have a question for you.

What does $\displaystyle n(\varepsilon) $ mean?

In forty years, I have never seen that symbol.

Yes, 7 is the correct answer.

Because $\displaystyle A\cap B\subseteq B$ that forces $\displaystyle n(A\cap B)\le n(B)$. - Sep 10th 2011, 11:59 AManonimnystefyRe: Set language and Notation questions
hi Plato

i think it represents number of elements in the universal set. - Sep 10th 2011, 12:00 PMFailInMathsRe: Set language and Notation questions
- Sep 10th 2011, 12:01 PMPlatoRe: Set language and Notation questions
See reply #7.

- Sep 10th 2011, 12:19 PMFailInMathsRe: Set language and Notation questions