surryyy
  • surryyy
The union of sets P = {4, 5, 6, 7, 8, 9, 10} Q = {8, 9, 10, 11, 12} is given by which of the following? a. {4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 12} b. {4, 5, 6, 7, 8, 9, 10, 11, 12} c. ø d. {8, 9, 10}
Mathematics
schrodinger
  • schrodinger
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UsukiDoll
  • UsukiDoll
set union P U Q which means all numbers in set P or all numbers in set Q. It's all of the numbers (you don't have to write the same number more than once if it's in set P and set Q)
surryyy
  • surryyy
so my answer would be b?
UsukiDoll
  • UsukiDoll
set intersection -> |dw:1438766135691:dw| means what does set P and set Q have in common. The numbers 8,9,10 are in set P and set Q so this is set intersection so for set union yes... b is the answer.

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surryyy
  • surryyy
ok i understand! thank u.
UsukiDoll
  • UsukiDoll
:) oh and choice c means empty set... so set P and set Q wouldn't have anything a.k.a no elements
surryyy
  • surryyy
yea i figured. tysm!
UsukiDoll
  • UsukiDoll
yw :D

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