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On a number line, there is an open dot at ( -1 ), a closed dot at ( 9 ), and the region between them is shaded. Which inequality is correct?संख्या रेखा पर ( -1 ) पर खुला बिंदु और ( 9 ) पर बंद बिंदु है तथा बीच का भाग छायांकित है। सही असमानता कौन सी है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ( -1<x\le 9 )( -1<x\le 9 )
The open dot excludes ( -1 ), and the closed dot includes ( 9 ). In exams, first identify the type of both endpoints.खुला बिंदु ( -1 ) को हटाता है और बंद बिंदु ( 9 ) को शामिल करता है। परीक्षा में पहले दोनों सिरों के प्रकार पहचानें।
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