असमानता \(-2\le\frac{5-x}{3}<4\) का सही संख्या रेखा अंतराल कौन-सा है?
Which is the correct number line interval for \(-2\le\frac{5-x}{3}<4\)?
Explanation opens after your attempt
Correct Answer
A. ((-7,11])
Concept
\(-6\le5-x<12\) gives \(-11\le -x<7\), so \(-7<x\le11\). In exams, reverse order and signs when changing (-x) to (x).
Why this answer is correct
The correct answer is A. ((-7,11]). \(-6\le5-x<12\) gives \(-11\le -x<7\), so \(-7<x\le11\). In exams, reverse order and signs when changing (-x) to (x).
Exam Tip
\(-6\le5-x<12\) से \(-11\le -x<7\), इसलिए \(-7<x\le11\)। परीक्षा में (-x) को (x) बनाते समय क्रम और चिन्ह पलटें।
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