Question

If U = {integers} and subset M = {negative integers}, what is M'?

Answer 1

I'm guessing that ' sign means the complement. If thats the case then its M' = {positive integers}

Answer 2

@4n1m0s1ty, do not post full answers, please. It is against the Code of Conduct.

Answer 3

@4n1m0s1ty, here is the Code of Conduct: http://openstudy.com/code-of-conduct

Answer 4

{positive integers} is not correct

Answer 5

its just {integers} ?

Answer 6

Hint: \(0\) is neither positive nor negative.

Answer 7

what is left from all integers when you take away all negative integers?
it's not only positive integers!

Answer 8

{}

Answer 9

that means the empty set.
so there would be nothing left.
do you think it's right?

Answer 10

Think about what limitless said

Answer 11

0 is neither positive nor negative.

Answer 12

-3 -2 -1

Answer 13

@Limitless and @4n1m0s1ty told you something you're not taking into account.
zero is not positive and it is not negative either.
what you wrote is a finite set
U and M are both infinite sets

Answer 14

Here, look at it like this:

\(U=\{\dots,-3,-2-1,0,1,2,3,\dots\}\)
\(M=\{\dots,-3,-2,-1\}\)
\(U=\{\{\dots,-3,-2,-1\},0,1,2,3,\dots\}\)

What do you think the numbers not in \(M\) are?