यदि (A=(2,7)) और (B=[5,9]), तो \(A\cup B\) क्या होगा?
If (A=(2,7)) and (B=[5,9]), what is \(A\cup B\)?
Explanation opens after your attempt
A. ( (2,9] )
Concept
The intervals overlap between (5) and (7). Since (2) is not included and (9) is included, ((2,9]) is correct.
Why this answer is correct
The correct answer is A. ( (2,9] ). The intervals overlap between (5) and (7). Since (2) is not included and (9) is included, ((2,9]) is correct.
Exam Tip
दोनों अंतराल (5) से (7) के बीच जुड़ते हैं। (2) शामिल नहीं और (9) शामिल है, इसलिए ((2,9]) सही है।
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