Q. Let P={−12,−9,−8,−3,−1} and Q={−8}. What is P∪Q?Choices:(A){−9,−8,−3,−1}(B){−12,−9,−8,−3,−1}(C){−8}(D){−12,−9,−3,−1}
Understand Union of Sets: Understand the concept of union of sets.The union of two sets P and Q, denoted by P∪Q, is the set of elements which are in P, or in Q, or in both. In other words, it combines all the unique elements from both sets.
List Elements of Set P: List the elements of set P.P contains the elements {−12,−9,−8,−3,−1}.
List Elements of Set Q: List the elements of set Q. Set Q contains the element {−8}.
Combine Sets P and Q: Combine the elements of sets P and Q. Since −8 is already in set P, adding set Q to set P does not introduce any new elements. Therefore, the union of P and Q is simply all the unique elements from both sets, which are already present in set P.
Write Union of Sets P and Q: Write down the union of sets P and Q.P∪Q={−12,−9,−8,−3,−1}.
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