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Which set is represented on a number line by two separate rays, where -1 is included, 4 is excluded, and no points between these two values are included?संख्या रेखा पर दो अलग-अलग किरणों वाला कौन-सा समुच्चय दर्शाया जाता है, जिसमें ឹ 출장샵
-1 शामिल है, 4 शामिल नहीं है, और समुच्चय इन दोनों बिंदुओं के बीच के सभी बिंदुओं को नहीं लेता?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(x\le -1\text{ or }x>4\)\(x\le -1\text{ or }x>4\)
A filled point at -1 gives \(x\le -1\), while an open point at 4 gives \(x>4\). The two separate rays are joined by “or,” not “and.” Exam tip: filled endpoints use \(\le\) or \(\ge\); open endpoints use \(<\) or \(>\).-1 पर भरा बिंदु होने से \(x\le -1\) मिलता है और 4 पर खुला बिंदु होने से \(x>4\) मिलता है। दोनों किरणें ‘or’ से जुड़ती हैं। परीक्षा में भरा बिंदु \(\le,\ge\) तथा खुला बिंदु \(<,>\) दर्शाता है।
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