अंतराल (\(-\infty,-1]\cup[4,\infty\)) संख्या रेखा पर क्या दिखाता है?
What does the interval (\(-\infty,-1]\cup[4,\infty\)) show on the number line?
Explanation opens after your attempt
Correct Answer
B. \(x\le -1\) या \(x\ge 4\)\(x\le -1\) or \(x\ge 4\)
Concept
(\(-\infty,-1]\) means \(x\le -1\), and \([4,\infty\)) means \(x\ge 4\). The symbol \(\cup\) means the union of both parts.
Why this answer is correct
The correct answer is B. \(x\le -1\) या \(x\ge 4\) / \(x\le -1\) or \(x\ge 4\). (\(-\infty,-1]\) means \(x\le -1\), and \([4,\infty\)) means \(x\ge 4\). The symbol \(\cup\) means the union of both parts.
Exam Tip
(\(-\infty,-1]\) में \(x\le -1\) और \([4,\infty\)) में \(x\ge 4\) है। \(\cup\) का अर्थ दोनों भागों का मिलन है।
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