असमानता \(4x-9\le 2x+3<5x+12\) से संख्या रेखा पर कौन-सा अंतराल मिलेगा?
Which interval is obtained on the number line from \(4x-9\le 2x+3<5x+12\)?
Explanation opens after your attempt
A. \([-6,\infty\))
Concept
The first part gives \(x\le6\) and the second gives (x>-3), so the correct common solution is ((-3,6]). In exams, split a compound inequality into two conditions and check carefully.
Why this answer is correct
The correct answer is A. \([-6,\infty\)). The first part gives \(x\le6\) and the second gives (x>-3), so the correct common solution is ((-3,6]). In exams, split a compound inequality into two conditions and check carefully.
Exam Tip
पहले भाग से \(x\le6\) नहीं बल्कि \(x\le6\) और दूसरे से (x>-3) मिलता है, इसलिए सही साझा हल ((-3,6]) नहीं है। परीक्षा में संयुक्त असमानता को दो अलग शर्तों में बाँटकर जाँचें।
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