यदि ( \frac{(n+2)!-(n+1)!}{n!}=100 ), तो (n) का मान क्या है?

If ( \frac{(n+2)!-(n+1)!}{n!}=100 ), what is the value of (n)?

Explanation opens after your attempt
Correct Answer

C. (9)

Step 1

Concept

The expression becomes ((n+1)2), so (n+1=10). Hence (n=9).

Step 2

Why this answer is correct

The correct answer is C. (9). The expression becomes ((n+1)2), so (n+1=10). Hence (n=9).

Step 3

Exam Tip

अभिव्यक्ति ((n+1)2) बनती है, इसलिए (n+1=10)। अतः (n=9)।

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Mathematics Answer, Explanation and Revision Hints

यदि ( \frac{(n+2)!-(n+1)!}{n!}=100 ), तो (n) का मान क्या है? / If ( \frac{(n+2)!-(n+1)!}{n!}=100 ), what is the value of (n)?

Correct Answer: C. (9). Explanation: अभिव्यक्ति ((n+1)2) बनती है, इसलिए (n+1=10)। अतः (n=9)। / The expression becomes ((n+1)2), so (n+1=10). Hence (n=9).

Which concept should I revise for this Mathematics MCQ?

The expression becomes ((n+1)2), so (n+1=10). Hence (n=9).

What exam hint can help solve this Mathematics question?

अभिव्यक्ति ((n+1)2) बनती है, इसलिए (n+1=10)। अतः (n=9)।