Chapter 1: Sets
Chapter 1: Sets
Exercise
Question
Question: 2
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Let A = {a, b}, B = {a, b, c}. Is A ⊂ B? What is A ∪ B?
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Answer
1
Determine whether all elements of set A are also elements of set B.
Answer: Yes
Reason: Every element of set A is present in set B. Therefore, A $⊂$ B.
2
Find the union of sets A and B by finding all distinct elements from both sets.Trick: If A ⊂ B, then A ∪ B = B
Answer: A $∪$ B = {a, b, c}
Reason: Since every element of A is already present in B, taking the union does not add any new elements to B. Therefore, A $∪$ B = B