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Which option shows the whole set of real numbers on the number line?किस विकल्प में संख्या रेखा पर पूरा वास्तविक समुच्चय दिखाया गया है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((-\infty,\infty))((-\infty,\infty))
The whole real line is written as ((-\infty,\infty)) and square brackets are not used with infinity. In exams do not treat infinity as an includable endpoint.पूरी वास्तविक रेखा ((-\infty,\infty)) से लिखी जाती है और infinity पर वर्ग कोष्ठक नहीं लगते। परीक्षा में infinity को endpoint मानकर शामिल न करें।
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