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Which number-line representation is equivalent to ( (-\infty,-7]\cup[-7,\infty) )?कौन सा संख्या रेखा निरूपण ( (-\infty,-7]\cup[-7,\infty) ) के बराबर है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: All real numbersसभी वास्तविक संख्याएं
The two intervals together cover the entire number line including ( -7 ). In a union, all covered regions are included.दोनों अंतराल मिलकर ( -7 ) सहित पूरी संख्या रेखा को ढकते हैं। संघ में ढके हुए सभी भाग शामिल होते हैं।
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