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What is the interval notation for the inequality x ≤ 4?असमानता x ≤ 4 का अंतराल निरूपण क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (−∞, 4](−∞, 4]
The inequality x ≤ 4 includes every real number less than 4 and also 4 itself. These values extend without bound toward negative infinity, which is never included as an endpoint, so the interval is (−∞, 4].असमानता x ≤ 4 में 4 से छोटी सभी वास्तविक संख्याएँ और 4 स्वयं शामिल हैं। ये मान ऋणात्मक अनंत की ओर बिना सीमा तक जाते हैं; अनंत को कभी अंतिम बिंदु के रूप में शामिल नहीं किया जाता। इसलिए अंतराल (−∞, 4] है।
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