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Mathematics 23 Online
OpenStudy (anonymous):

If T = {integers} and subset W = {positive integers}, what is W′?

Parth (parthkohli):

What are the elements in T that are NOT in W?

OpenStudy (anonymous):

none so is it {}

Parth (parthkohli):

How?

Parth (parthkohli):

Hint: Integers are {..-4,-3,-2,-1,0,1,2,3,4..}

OpenStudy (unklerhaukus):

not all the integers are positive

Parth (parthkohli):

Positive integers are {1,2,3,4,5....}

OpenStudy (anonymous):

theses r my options .. {1, 2, 3, …} {…−3, −2, −1} {−3, −2, −1, 0} { }

Parth (parthkohli):

See my hint, and you'll see what is not common :)

OpenStudy (anonymous):

1234

Parth (parthkohli):

? no

OpenStudy (anonymous):

so wat could it be

Parth (parthkohli):

1,2,3,4 are COMMON. I'm asking for the ones NOT common

OpenStudy (anonymous):

{-1,-2,-3,-4}

Parth (parthkohli):

Yep.. that's it

OpenStudy (anonymous):

so from my options it would be {…−3, −2, −1}

Parth (parthkohli):

Yea

OpenStudy (anonymous):

thanks

Parth (parthkohli):

You're welcome ^_^

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