यदि \(A=\{1,2\}\), \(B=\{2,3\}\) और \(C=\{3,4\}\) हैं, तो \(A\cup B\cup C\) क्या है?

If \(A=\{1,2\}\), \(B=\{2,3\}\), and \(C=\{3,4\}\), what is \(A\cup B\cup C\)?

Explanation opens after your attempt
Correct Answer

A. ( {1,2,3,4} )

Step 1

Concept

Union takes all distinct elements. Repetition is not needed in a set.

Step 2

Why this answer is correct

The correct answer is A. ( {1,2,3,4} ). Union takes all distinct elements. Repetition is not needed in a set.

Step 3

Exam Tip

संघ में सभी अलग-अलग अवयव लिए जाते हैं। दोहराव लिखना समुच्चय में आवश्यक नहीं होता।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2\}\), \(B=\{2,3\}\) और \(C=\{3,4\}\) हैं, तो \(A\cup B\cup C\) क्या है? / If \(A=\{1,2\}\), \(B=\{2,3\}\), and \(C=\{3,4\}\), what is \(A\cup B\cup C\)?

Correct Answer: A. ( {1,2,3,4} ). Explanation: संघ में सभी अलग-अलग अवयव लिए जाते हैं। दोहराव लिखना समुच्चय में आवश्यक नहीं होता। / Union takes all distinct elements. Repetition is not needed in a set.

Which concept should I revise for this Mathematics MCQ?

Union takes all distinct elements. Repetition is not needed in a set.

What exam hint can help solve this Mathematics question?

संघ में सभी अलग-अलग अवयव लिए जाते हैं। दोहराव लिखना समुच्चय में आवश्यक नहीं होता।