यदि \(A={x:x^2=9}\) और \(B={x:x^2-4=0}\), तो \(A\cup B\) क्या है?
If \(A={x:x^2=9}\) and \(B={x:x^2-4=0}\), what is \(A\cup B\)?
Explanation opens after your attempt
A. ( {-3,3,-2,2} )
Concept
\(A=\{-3,3\}\) and \(B=\{-2,2\}\). The union contains all elements from both sets.
Why this answer is correct
The correct answer is A. ( {-3,3,-2,2} ). \(A=\{-3,3\}\) and \(B=\{-2,2\}\). The union contains all elements from both sets.
Exam Tip
\(A=\{-3,3\}\) और \(B=\{-2,2\}\) है। संघ में दोनों के सभी अवयव आते हैं।
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