यदि (a<b) और (k>0) है, तो (ka) और (kb) के बीच सही संबंध कौन सा है?
If (a<b) and (k>0), what is the correct relation between (ka) and (kb)?
Explanation opens after your attempt
A. (ka<kb)
Concept
Multiplying by a positive number does not change inequality direction. Check the sign of the multiplier before writing the conclusion.
Why this answer is correct
The correct answer is A. (ka<kb). Multiplying by a positive number does not change inequality direction. Check the sign of the multiplier before writing the conclusion.
Exam Tip
धनात्मक संख्या से गुणा करने पर असमानता की दिशा नहीं बदलती। पहले गुणक का चिन्ह देखें, फिर निष्कर्ष लिखें।
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