यदि (x>5) है तो दोनों ओर (-1) से गुणा करने पर सही असमानता कौन सी है?
If (x>5), which inequality is correct after multiplying both sides by (-1)?
Explanation opens after your attempt
B. (-x< -5)
Concept
When multiplying by a negative number, the inequality sign reverses. This is a very common mistake.
Why this answer is correct
The correct answer is B. (-x< -5). When multiplying by a negative number, the inequality sign reverses. This is a very common mistake.
Exam Tip
ऋणात्मक संख्या से गुणा करने पर असमानता का चिह्न पलट जाता है। यह बहुत सामान्य गलती है।
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