असमानता \(4-2x\ge 0\) का संख्या रेखा पर हल कौन-सा है?
Which number line solution represents \(4-2x\ge 0\)?
Explanation opens after your attempt
Correct Answer
B. \(x\le 2\)
Concept
Solving gives \(-2x\ge -4\) and dividing by a negative changes the sign to \(x\le 2\). In exams reverse the inequality sign when dividing by a negative.
Why this answer is correct
The correct answer is B. \(x\le 2\). Solving gives \(-2x\ge -4\) and dividing by a negative changes the sign to \(x\le 2\). In exams reverse the inequality sign when dividing by a negative.
Exam Tip
हल करने पर \(-2x\ge -4\) और ऋणात्मक से भाग देने पर चिह्न बदलकर \(x\le 2\) होता है। परीक्षा में ऋणात्मक से भाग देने पर असमानता का चिन्ह पलटें।
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