(\frac{(n+1)!}{(n-1)!}) का सरल रूप क्या है?
What is the simplified form of (\frac{(n+1)!}{(n-1)!})?
Explanation opens after your attempt
Correct Answer
B. (n(n+1))
Concept
((n+1)!=(n+1)n(n-1)!), so the remaining part is (n(n+1)). Cancel the common factorial part.
Why this answer is correct
The correct answer is B. (n(n+1)). ((n+1)!=(n+1)n(n-1)!), so the remaining part is (n(n+1)). Cancel the common factorial part.
Exam Tip
((n+1)!=(n+1)n(n-1)!), इसलिए शेष (n(n+1)) है। समान क्रमगुणित भाग काटें।
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