असमानता (2(1-x)<x+8) का संख्या रेखा हल कौन-सा है?
Which is the number line solution of (2(1-x)<x+8)?
Explanation opens after your attempt
A. (x>-2), (-2) पर खुला बिंदु और दाईं ओर(x>-2), open dot at (-2) shaded right
Concept
(2-2x<x+8) gives (-3x<6), so (x>-2). In exams, change the sign while dividing by a negative coefficient.
Why this answer is correct
The correct answer is A. (x>-2), (-2) पर खुला बिंदु और दाईं ओर / (x>-2), open dot at (-2) shaded right. (2-2x<x+8) gives (-3x<6), so (x>-2). In exams, change the sign while dividing by a negative coefficient.
Exam Tip
(2-2x<x+8) से (-3x<6), इसलिए (x>-2)। परीक्षा में negative coefficient से divide करते समय sign बदलें।
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