(\frac{(n+2)!}{(n+1)!}-\frac{n!}{(n-1)!}) का सरल रूप क्या है?
What is the simplified form of (\frac{(n+2)!}{(n+1)!}-\frac{n!}{(n-1)!})?
Explanation opens after your attempt
Correct Answer
B. (2)
Concept
The first term is (n+2) and the second is (n), so the difference is (2). Simplifying separately reduces mistakes.
Why this answer is correct
The correct answer is B. (2). The first term is (n+2) and the second is (n), so the difference is (2). Simplifying separately reduces mistakes.
Exam Tip
पहला पद (n+2) और दूसरा (n) है, इसलिए अंतर (2) है। अलग-अलग सरलीकरण करने से गलती कम होती है।
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