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