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Which of the following is a subset of {1, 2, 3}?

Practice Questions

Q1
Which of the following is a subset of {1, 2, 3}?
  1. {1, 2}
  2. {4}
  3. {1, 2, 3, 4}
  4. {2, 3, 4}

Questions & Step-by-Step Solutions

Which of the following is a subset of {1, 2, 3}?
  • Step 1: Understand what a subset is. A subset is a set that includes some or all elements from another set.
  • Step 2: Look at the original set, which is {1, 2, 3}.
  • Step 3: Identify the possible subsets. For example, {1}, {2}, {3}, {1, 2}, {1, 3}, {2, 3}, and the empty set {} are all subsets of {1, 2, 3}.
  • Step 4: Check if {1, 2} is included in the list of subsets. Since {1, 2} contains elements from {1, 2, 3}, it is a valid subset.
  • Step 5: Conclude that {1, 2} is indeed a subset of {1, 2, 3}.
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