( \frac{(n+1)!}{(n-2)!} ) का सरल रूप क्या है?
What is the simplified form of ( \frac{(n+1)!}{(n-2)!} )?
Explanation opens after your attempt
Correct Answer
A. ( (n+1)n(n-1) )
Concept
((n+1)!=(n+1)n(n-1)(n-2)!), so three factors remain. Expand in descending order.
Why this answer is correct
The correct answer is A. ( (n+1)n(n-1) ). ((n+1)!=(n+1)n(n-1)(n-2)!), so three factors remain. Expand in descending order.
Exam Tip
((n+1)!=(n+1)n(n-1)(n-2)!), इसलिए तीन गुणक शेष हैं। घटते क्रम में विस्तार करें।
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