Single Choice

The union of the following pair of sets is: A={2,3,5,6,7},B={4,5,7,8}

AA∪B={4,5,6,7,8}
BA∪B={2,3,4}
CA∪B={2,3,4,5,6,7,8}
Correct Answer
DA∪B={2,3,6,7,8}

Solution

A U B means "A union B", a set of elements (everything )that is in either of the sets. so the solution is all elements in both sets.
Hence, option C is correct.

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