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Which option is the correct interval form of (x\le -15)?कौन सा विकल्प (x\le -15) का सही अंतराल रूप है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((-\infty,-15])((-\infty,-15])
In (x\le -15), (-15) is included and smaller numbers are taken. Infinity always uses a parenthesis.(x\le -15) में (-15) शामिल है और उससे छोटी संख्याएँ ली जाती हैं। अनंत के साथ हमेशा गोल कोष्ठक आता है।
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