कौन सा संख्या रेखा चित्र ( x\in\( -\infty,-1]\cap[ -1,6 \) ) को दिखाता है?
Which number-line graph represents ( x\in\( -\infty,-1]\cap[ -1,6 \) )?
Explanation opens after your attempt
Correct Answer
B. सिर्फ ( -1 ) पर बंद बिंदुOnly a closed dot at ( -1 )
Concept
The common part of both intervals is only ( -1 ). Since ( -1 ) is included in both, it becomes a closed dot.
Why this answer is correct
The correct answer is B. सिर्फ ( -1 ) पर बंद बिंदु / Only a closed dot at ( -1 ). The common part of both intervals is only ( -1 ). Since ( -1 ) is included in both, it becomes a closed dot.
Exam Tip
दोनों अंतरालों का साझा भाग केवल ( -1 ) है। दोनों में ( -1 ) शामिल है इसलिए बंद बिंदु बनेगा।
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