Q. Let D={5} and E={5,15,25,35}. What is D∪E?Choices:(A){5,15,25,35}(B){15,25,35}(C){25}(D) ∅
Initialize Sets:D={5} and E={5,15,25,35}. To find the union of two sets, we combine all the unique elements from both sets.
Find Union: The union of D and E, denoted by D∪E, will include all the elements from D and all the elements from E without repeating any elements.
Combine Unique Elements: Since 5 is present in both D and E, it will only be listed once in the union. The rest of the elements from E will be included as they are not present in D.
Final Union: Therefore, D∪E={5,15,25,35}.
Correct Answer: Comparing the result with the given choices, we find that the correct answer is (A)5,15,25,35.