कौन सा संख्या रेखा चित्र \(x\notin (-2,4)\) को दर्शाता है?
Which number-line graph represents \(x\notin (-2,4)\)?
Explanation opens after your attempt
B. ( -2 ) और ( 4 ) पर बंद बिंदु, बाहर की ओर छायाClosed at ( -2 ) and ( 4 ), shaded outside
Concept
The complement of ( (-2,4) ) is ( \(-\infty,-2]\cup[4,\infty\) ). When taking a complement, open endpoints become closed.
Why this answer is correct
The correct answer is B. ( -2 ) और ( 4 ) पर बंद बिंदु, बाहर की ओर छाया / Closed at ( -2 ) and ( 4 ), shaded outside. The complement of ( (-2,4) ) is ( \(-\infty,-2]\cup[4,\infty\) ). When taking a complement, open endpoints become closed.
Exam Tip
( (-2,4) ) का पूरक ( \(-\infty,-2]\cup[4,\infty\) ) है। पूरक लेते समय खुले सिरे बंद हो जाते हैं।
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