(\frac{(n+3)!}{(n+1)!}-\frac{(n+2)!}{n!}) का सरल रूप क्या है?
What is the simplified form of (\frac{(n+3)!}{(n+1)!}-\frac{(n+2)!}{n!})?
Explanation opens after your attempt
Correct Answer
A. (2(n+2))
Concept
The first term is ((n+3)(n+2)) and the second is ((n+2)(n+1)). The difference is (2(n+2)).
Why this answer is correct
The correct answer is A. (2(n+2)). The first term is ((n+3)(n+2)) and the second is ((n+2)(n+1)). The difference is (2(n+2)).
Exam Tip
पहला पद ((n+3)(n+2)) और दूसरा ((n+2)(n+1)) है। अंतर (2(n+2)) है।
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