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If set T = {1, 2, 3} and set U = {2, 3, 4}, what is the difference T - U?

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Question: If set T = {1, 2, 3} and set U = {2, 3, 4}, what is the difference T - U?

Options:

  1. {1}
  2. {2, 3}
  3. {4}
  4. {}

Correct Answer: {1}

Solution: 

The difference T - U includes elements that are in set T but not in set U, which is {1}.

If set T = {1, 2, 3} and set U = {2, 3, 4}, what is the difference T - U?

Practice Questions

Q1
If set T = {1, 2, 3} and set U = {2, 3, 4}, what is the difference T - U?
  1. {1}
  2. {2, 3}
  3. {4}
  4. {}

Questions & Step-by-Step Solutions

If set T = {1, 2, 3} and set U = {2, 3, 4}, what is the difference T - U?
  • Step 1: Identify the elements in set T, which are {1, 2, 3}.
  • Step 2: Identify the elements in set U, which are {2, 3, 4}.
  • Step 3: Look for elements that are in set T but not in set U.
  • Step 4: Check each element in set T: 1 is not in set U, 2 is in set U, and 3 is in set U.
  • Step 5: The only element from set T that is not in set U is 1.
  • Step 6: Therefore, the difference T - U is {1}.
  • Set Difference – The operation that results in elements that are in one set but not in another.
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