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If A = {a, b, c} and B = {c, d, e}, what is A ∪ B?
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Answer and explanation
Correct answer: {a, b, c, d, e}
The union A ∪ B contains every distinct element that belongs to A or B. Combining the sets gives a, b, c, d, and e. Although c appears in both sets, it is written only once because a set does not repeat elements. Thus, A ∪ B = {a, b, c, d, e}; option C is correct.
Frequently asked questions
What is the correct answer to this question?
{a, b, c, d, e}
Why is this the correct answer?
The union A ∪ B contains every distinct element that belongs to A or B. Combining the sets gives a, b, c, d, and e. Although c appears in both sets, it is written only once because a set does not repeat elements. Thus, A ∪ B = {a, b, c, d, e}; option C is correct.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Sets.
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