If set I = {1, 2, 3} and set J = {2, 3, 4}, what is the result of the operation

Practice Questions

Q1
If set I = {1, 2, 3} and set J = {2, 3, 4}, what is the result of the operation I - J?
  1. {1}
  2. {2, 3}
  3. {4}
  4. {}

Questions & Step-by-Step Solutions

If set I = {1, 2, 3} and set J = {2, 3, 4}, what is the result of the operation I - J?
  • Step 1: Identify the elements in set I, which are {1, 2, 3}.
  • Step 2: Identify the elements in set J, which are {2, 3, 4}.
  • Step 3: Determine which elements in set I are not in set J.
  • Step 4: Compare each element in set I with the elements in set J.
  • Step 5: The element 1 is in set I but not in set J, so we keep it.
  • Step 6: The elements 2 and 3 are in both sets, so we do not keep them.
  • Step 7: The result of the operation I - J is the set containing only the element 1, which is {1}.
  • Set Difference – The operation I - J represents the set of elements that are in set I but not in set J.
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