यदि ( \frac{(2n+1)!}{(2n-1)!}=210 ), तो (n) का मान क्या है?

If ( \frac{(2n+1)!}{(2n-1)!}=210 ), what is the value of (n)?

Explanation opens after your attempt
Correct Answer

B. (7)

Step 1

Concept

((2n+1)(2n)=210) and \(15\cdot14=210\), so (2n=14) and (n=7). Identify the consecutive factors first.

Step 2

Why this answer is correct

The correct answer is B. (7). ((2n+1)(2n)=210) and \(15\cdot14=210\), so (2n=14) and (n=7). Identify the consecutive factors first.

Step 3

Exam Tip

((2n+1)(2n)=210) और \(15\cdot14=210\), इसलिए (2n=14) और (n=7)। पहले लगातार गुणकों को पहचानें।

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Mathematics Answer, Explanation and Revision Hints

यदि ( \frac{(2n+1)!}{(2n-1)!}=210 ), तो (n) का मान क्या है? / If ( \frac{(2n+1)!}{(2n-1)!}=210 ), what is the value of (n)?

Correct Answer: B. (7). Explanation: ((2n+1)(2n)=210) और \(15\cdot14=210\), इसलिए (2n=14) और (n=7)। पहले लगातार गुणकों को पहचानें। / ((2n+1)(2n)=210) and \(15\cdot14=210\), so (2n=14) and (n=7). Identify the consecutive factors first.

Which concept should I revise for this Mathematics MCQ?

((2n+1)(2n)=210) and \(15\cdot14=210\), so (2n=14) and (n=7). Identify the consecutive factors first.

What exam hint can help solve this Mathematics question?

((2n+1)(2n)=210) और \(15\cdot14=210\), इसलिए (2n=14) और (n=7)। पहले लगातार गुणकों को पहचानें।