\(\frac{12!}{9!}\) में कितने लगातार गुणनखंड बचते हैं?
How many consecutive factors remain in \(\frac{12!}{9!}\)?
Explanation opens after your attempt
B. (3)
Concept
\(\frac{12!}{9!}=12\cdot11\cdot10\), so three factors remain. Cancel the numerator up to the denominator factorial.
Why this answer is correct
The correct answer is B. (3). \(\frac{12!}{9!}=12\cdot11\cdot10\), so three factors remain. Cancel the numerator up to the denominator factorial.
Exam Tip
\(\frac{12!}{9!}=12\cdot11\cdot10\), इसलिए तीन गुणनखंड बचते हैं। हर के फैक्टोरियल तक अंश को काटें।
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