anonymous
  • anonymous
Given the following sets. A = {0, 1, 2, 3} B = {a, b, c, d} C = {0, a, 2, b} Find A B {0, 1, 2, 3} {a, b, c, d} {0, a, 2, b} empty set {0, a}
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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reemii
  • reemii
is it 1) \(A\cap B\) or 2) \(A\cup B\) ?
anonymous
  • anonymous
yeahh the first one
reemii
  • reemii
do you know the meaning of \(\cap\) ?

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reemii
  • reemii
\(A\cap B\) is a set called "intersection of A and B". the elements of \(A\cap B\) are the elements that are in A AND in B. If there are none, then this set is empty.
reemii
  • reemii
any idea?
anonymous
  • anonymous
noo hah im confused
reemii
  • reemii
take A={0,1,2,3}, B={a,b,c,d}. What are the elements that are in both sets?
anonymous
  • anonymous
in the brackets ?
reemii
  • reemii
yes, so what you do is -look at 0, then check if it's in B -> it's not in B -look at 1, then check if it's in B -> it's not in B -look at 2, then check if it's in B -> it's not in B -look at 3, then check if it's in B -> it's not in B Therefore no elements of A are in B. They have nothing in common. Then \(A\cap B=\varnothing\) (empty set).
Hero
  • Hero
Draw a picture to help her understand. Hint: Venn Diagrams

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