असमानता \(-5\leq \frac{x-1}{2}<4\) का हल कौन सा है?
Which is the solution of \(-5\leq \frac{x-1}{2}<4\)?
Explanation opens after your attempt
A. \(-11\leq x<9\)
Concept
Multiplying by (2) gives \(-10\leq x-1<8\). Adding (1) gives \(-9\leq x<9\), so check endpoints carefully.
Why this answer is correct
The correct answer is A. \(-11\leq x<9\). Multiplying by (2) gives \(-10\leq x-1<8\). Adding (1) gives \(-9\leq x<9\), so check endpoints carefully.
Exam Tip
(2) से गुणा करने पर \(-10\leq x-1<8\) मिलता है। फिर (1) जोड़कर \(-9\leq x<9\) नहीं, सही \(-9\leq x<9\) होगा।
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