यदि \(A=\{1,2,3\}\), \(B=\{3,4\}\) और \(C=\{4,5\}\) है, तो \(A\cup B\cup C\) क्या है?

If \(A=\{1,2,3\}\), \(B=\{3,4\}\), and \(C=\{4,5\}\), what is \(A\cup B\cup C\)?

Explanation opens after your attempt
Correct Answer

A. ( {1,2,3,4,5} )

Step 1

Concept

Taking all distinct elements from the three sets gives ({1,2,3,4,5}). Repetition is not written in a union.

Step 2

Why this answer is correct

The correct answer is A. ( {1,2,3,4,5} ). Taking all distinct elements from the three sets gives ({1,2,3,4,5}). Repetition is not written in a union.

Step 3

Exam Tip

तीनों समुच्चयों के सभी अलग-अलग अवयव लेने पर ({1,2,3,4,5}) मिलता है। संघ में पुनरावृत्ति नहीं लिखी जाती।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3\}\), \(B=\{3,4\}\) और \(C=\{4,5\}\) है, तो \(A\cup B\cup C\) क्या है? / If \(A=\{1,2,3\}\), \(B=\{3,4\}\), and \(C=\{4,5\}\), what is \(A\cup B\cup C\)?

Correct Answer: A. ( {1,2,3,4,5} ). Explanation: तीनों समुच्चयों के सभी अलग-अलग अवयव लेने पर ({1,2,3,4,5}) मिलता है। संघ में पुनरावृत्ति नहीं लिखी जाती। / Taking all distinct elements from the three sets gives ({1,2,3,4,5}). Repetition is not written in a union.

Which concept should I revise for this Mathematics MCQ?

Taking all distinct elements from the three sets gives ({1,2,3,4,5}). Repetition is not written in a union.

What exam hint can help solve this Mathematics question?

तीनों समुच्चयों के सभी अलग-अलग अवयव लेने पर ({1,2,3,4,5}) मिलता है। संघ में पुनरावृत्ति नहीं लिखी जाती।