Thread: Set language and Notation questions

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

Originally Posted by FailInMaths

Attachment 22232
Hi guys, why is my answer (7) wrong? Please do explain, thank you very much!

hi

if you read the first line in the pic you will see that it says:"Your answer for Blank 1 '12' is incorrect"

Originally Posted by anonimnystefy

hi

if you read the first line in the pic you will see that it says:"Your answer for Blank 1 '12' is incorrect"

Well

Originally Posted by anonimnystefy

hi

if you read the first line in the pic you will see that it says:"Your answer for Blank 1 '12' is incorrect"

I know what you mean but somehow that bold number is the answer

Originally Posted by plato

well

edit : -

I have a question for you.
What does mean?
In forty years, I have never seen that symbol.

Yes, 7 is the correct answer.
Because that forces .

hi Plato

i think it represents number of elements in the universal set.

Originally Posted by Plato

I have a question for you.
What does mean?
In forty years, I have never seen that symbol.

Universal set, so is my answer right or wrong? I just don't get it!!!!

Edit: ok.. it's good to hear that my answer was correct, had been thinking for a long while before approaching to this forum. I thought that I could never doubt the system.

See reply #7.

Originally Posted by Plato

See reply #7.

Thanks a lot!