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How will (x^2>49) appear on the number line?असमानता (x^2>49) संख्या रेखा पर किस रूप में दिखेगी?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((-\infty,-7)\cup(7,\infty))((-\infty,-7)\cup(7,\infty))
(x^2>49) gives (|x|>7), so two open outer regions are obtained. In exams, do not include boundary points for strict (>).(x^2>49) से (|x|>7), इसलिए बाहर के दो खुले भाग मिलते हैं। परीक्षा में strict (>) होने पर boundary points शामिल न करें।
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