यदि ( \frac{(n+2)!}{(n-1)!}-\frac{(n+1)!}{(n-2)!}=330 ), तो (n) का मान क्या है?

If ( \frac{(n+2)!}{(n-1)!}-\frac{(n+1)!}{(n-2)!}=330 ), what is the value of (n)?

Explanation opens after your attempt
Correct Answer

C. (10)

Step 1

Concept

The simplified form is (3n(n+1)), so (n(n+1)=110). Since \(10\cdot11=110\), (n=10).

Step 2

Why this answer is correct

The correct answer is C. (10). The simplified form is (3n(n+1)), so (n(n+1)=110). Since \(10\cdot11=110\), (n=10).

Step 3

Exam Tip

सरल रूप (3n(n+1)) है, इसलिए (n(n+1)=110)। \(10\cdot11=110\), इसलिए (n=10)।

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Mathematics Answer, Explanation and Revision Hints

यदि ( \frac{(n+2)!}{(n-1)!}-\frac{(n+1)!}{(n-2)!}=330 ), तो (n) का मान क्या है? / If ( \frac{(n+2)!}{(n-1)!}-\frac{(n+1)!}{(n-2)!}=330 ), what is the value of (n)?

Correct Answer: C. (10). Explanation: सरल रूप (3n(n+1)) है, इसलिए (n(n+1)=110)। \(10\cdot11=110\), इसलिए (n=10)। / The simplified form is (3n(n+1)), so (n(n+1)=110). Since \(10\cdot11=110\), (n=10).

Which concept should I revise for this Mathematics MCQ?

The simplified form is (3n(n+1)), so (n(n+1)=110). Since \(10\cdot11=110\), (n=10).

What exam hint can help solve this Mathematics question?

सरल रूप (3n(n+1)) है, इसलिए (n(n+1)=110)। \(10\cdot11=110\), इसलिए (n=10)।