( \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)!} )?
Explanation opens after your attempt
A. ((n+2)2)
Concept
((n+3)!-(n+2)!=(n+2)!((n+3)-1)). This gives ((n+2)2).
Why this answer is correct
The correct answer is A. ((n+2)2). ((n+3)!-(n+2)!=(n+2)!((n+3)-1)). This gives ((n+2)2).
Exam Tip
((n+3)!-(n+2)!=(n+2)!((n+3)-1)) है। इससे ((n+2)2) मिलता है।
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