यदि \( -4<x\leq 2 \), तो (3x-1) का सही परिसर कौन सा है?
If \( -4<x\leq 2 \), what is the correct range of (3x-1)?
Explanation opens after your attempt
A. \( -13<3x-1\leq 5 \)
Concept
Multiplying the whole inequality by (3) and subtracting (1) gives \( -13<3x-1\leq 5 \). Positive multiplication does not change the sign.
Why this answer is correct
The correct answer is A. \( -13<3x-1\leq 5 \). Multiplying the whole inequality by (3) and subtracting (1) gives \( -13<3x-1\leq 5 \). Positive multiplication does not change the sign.
Exam Tip
पूरी असमानता को (3) से गुणा करके (1) घटाने पर \( -13<3x-1\leq 5 \) मिलता है। धनात्मक गुणन में चिन्ह नहीं बदलता।
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