यदि \(A={x:x\in\mathbb{Z},-4\le x\le 1}\) और \(B={x:x\in\mathbb{Z},-1\le x\le 4}\) हैं, तो \(A\cup B\) क्या है?
If \(A={x:x\in\mathbb{Z},-4\le x\le 1}\) and \(B={x:x\in\mathbb{Z},-1\le x\le 4}\), what is \(A\cup B\)?
Explanation opens after your attempt
Correct Answer
A. ( {-4,-3,-2,-1,0,1,2,3,4} )
Concept
Combining both integer intervals gives all integers from (-4) to (4). In union, write every available element.
Why this answer is correct
The correct answer is A. ( {-4,-3,-2,-1,0,1,2,3,4} ). Combining both integer intervals gives all integers from (-4) to (4). In union, write every available element.
Exam Tip
दोनों पूर्णांक अंतरालों को मिलाने पर (-4) से (4) तक सभी पूर्णांक मिलते हैं। संघ में सभी उपलब्ध अवयव लिखें।
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