कौन सा संख्या रेखा निरूपण ( \(-\infty,-7]\cup[-7,\infty\) ) के बराबर है?
Which number-line representation is equivalent to ( \(-\infty,-7]\cup[-7,\infty\) )?
Explanation opens after your attempt
Correct Answer
A. सभी वास्तविक संख्याएंAll real numbers
Concept
The two intervals together cover the entire number line including ( -7 ). In a union, all covered regions are included.
Why this answer is correct
The correct answer is A. सभी वास्तविक संख्याएं / All real numbers. The two intervals together cover the entire number line including ( -7 ). In a union, all covered regions are included.
Exam Tip
दोनों अंतराल मिलकर ( -7 ) सहित पूरी संख्या रेखा को ढकते हैं। संघ में ढके हुए सभी भाग शामिल होते हैं।
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