Mathematics Answer, Explanation and Revision Hints
( \frac{(n+3)!-(n+2)!}{(n+1)!} ) का सरल रूप क्या है? / What is the simplified form of ( \frac{(n+3)!-(n+2)!}{(n+1)!} )?
Correct Answer: A. ((n+2)2). Explanation: ((n+3)!-(n+2)!=(n+2)!((n+3)-1)) है। इससे ((n+2)2) मिलता है। / ((n+3)!-(n+2)!=(n+2)!((n+3)-1)). This gives ((n+2)2).
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