यदि (x>4) है, तो (x-4) और \(\frac{1}{x-4}\) के चिन्ह के बारे में सही कथन कौन सा है?
If (x>4), which statement about the signs of (x-4) and \(\frac{1}{x-4}\) is correct?
Explanation opens after your attempt
Correct Answer
A. दोनों धनात्मक हैंboth are positive
Concept
From (x>4), (x-4>0), so its reciprocal is also positive. The reciprocal keeps the same sign as the original quantity.
Why this answer is correct
The correct answer is A. दोनों धनात्मक हैं / both are positive. From (x>4), (x-4>0), so its reciprocal is also positive. The reciprocal keeps the same sign as the original quantity.
Exam Tip
(x>4) से (x-4>0), इसलिए उसका व्युत्क्रम भी धनात्मक होगा। व्युत्क्रम का चिन्ह मूल राशि जैसा ही रहता है।
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