Which is the number line solution of (2\le \frac{x+3}{5}<3)?असमानता (2\le \frac{x+3}{5}<3) का संख्या रेखा पर हल कौन-सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (7\le x<12)(7\le x<12)
Multiplying by (5) and subtracting (3) gives (7\le x<12). In exams positive multiplication does not reverse the inequality sign.(5) से गुणा करके और (3) घटाकर (7\le x<12) मिलता है। परीक्षा में positive multiplication से inequality sign नहीं बदलता।
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