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anonymous
 4 years ago
For the sets A = (1, 2], B = [−2, 1] and U=Reals, there's some identities I have to find for them I'm not familiar with. A^c , B^c , A ∩ B, A ∪ B, A\B, B \A, and A delta B
anonymous
 4 years ago
For the sets A = (1, 2], B = [−2, 1] and U=Reals, there's some identities I have to find for them I'm not familiar with. A^c , B^c , A ∩ B, A ∪ B, A\B, B \A, and A delta B

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[A^c=\{xx\notin A\}\]so in this case it would be \[(\infty, 1]\cup (2,\infty)\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0is there a list of these identity functions somewhere? I think I could figure it out if I had something to refer to, but I don't unfortunately

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0like, I'm not sure what A^c or A delta B or A \ B even mean

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0A^c means everything not in A

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0A\B means everything that is in A but not in B

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and i am not sure about the delta notation, but my guess it it means everything in A or B but not both

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Well, I guessed it meant delta because the symbol used is a small triangle.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0aks \[A\Delta B= (A\cup B)(A\cap B)\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0not standard notation, usually you see \[A\oplus B\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you ok with unions and intersections?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so the big U is the union of set A and B, meaning all their values together? and the big n is the intersection, only what they have in common?
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