( \frac{(n+4)!}{(n-1)!(n+3)(n+2)} ) का सरल रूप क्या है?
What is the simplified form of ( \frac{(n+4)!}{(n-1)!(n+3)(n+2)} )?
Explanation opens after your attempt
B. ( (n+1)(n+4) )
Concept
The numerator is ((n+4)(n+3)(n+2)(n+1)n(n-1)!). After cancellation (n(n+1)(n+4)) remains.
Why this answer is correct
The correct answer is B. ( (n+1)(n+4) ). The numerator is ((n+4)(n+3)(n+2)(n+1)n(n-1)!). After cancellation (n(n+1)(n+4)) remains.
Exam Tip
ऊपर ((n+4)(n+3)(n+2)(n+1)n(n-1)!) है। काटने पर (n(n+1)(n+4)) बचेगा।
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